Key Idea 2: Ecosystems

Size: px
Start display at page:

Download "Key Idea 2: Ecosystems"

Transcription

1 Key Idea 2: Ecosystems Ecosystems An ecosystem is a living community of plants and animals sharing an environment with non-living elements such as climate and soil. An example of a small scale ecosystem is a pond. A medium scale ecosystem could be a forest. The tropical rainforest is an example of a very large ecosystem (biome ). What makes up an ecosystem? All elements of an ecosystem interact. If one element is disturbed, the ecosystem does not function properly. Biotic (Living) Elements Plants Bacteria Insects Mammals Birds Abiotic (Non-Living) Elements Climate Soils Rocks 2.1 What physical processes connect living and non-living elements of ecosystems? The Link between Biome Location and Climate: Similar vegetation types are found in parts of the world that have a similar climate. This is because the main control on what grows / lives in an area if the climate (temperatures and amount of rainfall). Biome The largest scale ecosystem eg tropical rainforest, desert, temperate forest

2 Relationship between climate zones and biomes: Arctic: Features of an Arctic Ecosystem: - The Arctic climate is found in Northern Scandinavia and Iceland - Cold winters and short, mild summers. - Plants grow slowly because of the freezing temperatures, strong winds and snowfall in winter and the short growing season during summer. - South of the Arctic Circle the ecosystem is taiga which is a forest ecosystem of conifer trees and birch. - The further north you go the smaller the trees become until it is too cold and the treeless arctic tundra takes over. Vegetation Features: - Temperatures are only above 10 C (the temperature at which most plants grow) for two months or three months so plants have a short growing season. - Precipitation in the winter months falls as snow so plants have small leaves and so don t lose any moisture. - Rocks weather (break down) slowly in the cold conditions which means soils have few nutrients so plants are extremely slow growing. - With few trees around there is little shelter from wind so plants grow close to the ground where they are less likely to be damaged. Nutrient Cycles in the taiga: Nutrient cycling is essential for plant growth. In the taiga it happens slowly because of the cold temperatures. Leaf litter and other matter are broken down by decomposers like fungi and beetles. Dead leaves and branches fall from trees forming a litter layer on the soil Roots are shallow so they can take in nutrients near the surface Decomposers such as beetles and fungi grow in the litter Plants use nutrients from the soil to help growth Leaf litter breaks down slowly in the cold conditions Nutrients from leaf litter return to the soil

3 Tropical Rainforest Ecosystem: Features / Nutrient Cycles of a Tropical Ecosystem: - The winter months are warm and sunny so plants are able to photosynthesise all through the year. - Bacteria in the soil reproduce very quickly in the hot weather so decomposition of dead plant matter is very rapid. This means nutrients are transferred from the leaf litter into the soil very quickly. - The chemical reactions that release nutrients from rocks into the soil are rapid because of the heat. - This process is known as weathering. If trees are cut down, heavy rainfall can wash nutrients out of the soil. This process is known as leaching. - In equatorial regions the temperature is constantly above 25 c so plants can grow all year and grow quickly. - There is plenty of water, sunshine and nutrients so there are a large variety of plants. This means that there is also a wide variety of animals, insects and birds. - There is plenty of sunlight overhead so plants and trees grow straight and tall. - The intense rain that falls in the rainforest is the result of the heating from the tropical sun and so is convectional rainfall. 2.2 How do ecosystem processes benefit people? Key Services Provided By Ecosystems Globally: - Provide a safe environment for fish to spawn and juvenile fish to mature, so helping to maintain fish stocks eg tropical coral reefs - Provide people with the opportunity to develop recreation or tourism businesses eg tropical coral reefs, coniferous forests - Support thousands of plants and wild animals that contain chemicals that may be useful to agriculture or medicine eg tropical rainforests - Inspire a sense of awe and wonder in human beings eg all / any ecosystem (tropical rainforest, tropical coral reefs etc) - Act as a natural coastal defence against storm surges, string winds and coastal floods eg mangrove forests, sand dunes - Soak up rainwater and release it slowly, therefore reducing the risk of flooding downstream eg peat bogs / moors, forests - Act as a huge stores of carbon dioxide, so helping to regulate the greenhouse effect eg peat bogs / moors, tropical rainforests

4 Food chains: A food chain shows the different organisms that live in a habitat, and what eats what. Producers and s A food chain always starts with a producer, which is an organism that makes food. This is usually a green plant, because plants can make their own food by photosynthesis. A food chain ends with a, which is an animal that eats a plant or another animal. Here is an example of a simple food chain: grass cow human Take care - the arrow points to the organism that is doing the eating. If you get the arrows the wrong way round, instead of showing that humans eat cows, you are showing that cows eat humans, and that grass eats cows. Other words in a food chain There are several words used to describe the organisms in a food chain. Study this food chain: Grass Grasshopper Frog Hawk Producer Consumer Consumer Consumer Primary Secondary Tertiary The plant is the producer and the animals are s. Herbivore Carnivore Carnivore Notice that the first in the chain is also called the primary, the next one is the secondary and the one after that is the tertiary. A that eats plants is called a herbivore, and a that eats other animals is called a carnivore. An omnivore is an animal that eats both plants and animals. Predators and prey A predator is an animal that eats other animals, and the prey is the animal that gets eaten by the predator. In the food chain above: - The frog is a predator and the grasshopper is its prey. - The hawk is a predator and the frog is its prey.

5 Food Webs: When all the food chains in a habitat are joined up together they form a food web. Although it looks complex, it is just several food chains joined together. Here are some of the food chains in this food web: grass insect vole hawk grass insect frog fox grass insect vole fox one predator, but the rabbits and slugs have just one predator. Notice that the frogs, voles and insects have more than This leads to some interesting effects if the population of a particular organism in the food web decreases. Some animals can just eat more of another organism if food is in short supply, while others may starve and die. This in turn can affect the populations of other organisms in the food web. What would happen if the grass died? The grass is the producer, so if it died the s that feed on it - rabbits, insects and slugs - would have no food. They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have died out. The populations of the s would fall as the population of the producer fell. What would happen if the population of slugs decreased? Slugs, rabbits and insects all eat grass. If there were fewer slugs there would be more grass for the rabbits and insects. With more food the populations of rabbits and insects would increase. However, the thrushes would have to eat more insects to maintain their population, so it is also possible that the population of insects could decrease. This is turn may reduce the populations of voles and frogs. What would happen if the population of insects decreased? There would be more food for the rabbits and slugs, so their populations would increase. However, there would be less food for the frogs and voles, so their populations would decrease. This means less food for the foxes and hawks. However, there are likely to be more rabbits and thrushes for them to eat, so their populations are likely to stay the same. 2.3 How does human activity affect physical processes within ecosystems? 2.4 How can ecosystems be managed sustainably? SEE CASE STUDY 8: TROPICAL RAINFOREST ECOSYSTEM AMAZON RAINFOREST

4. Which choice below lists the biomes in order from lowest precipitation amounts to highest precipitation amounts?

4. Which choice below lists the biomes in order from lowest precipitation amounts to highest precipitation amounts? Ecosystems and Biomes 1. All of the living organisms in a forest plus their environment is an example of A. a biome. B. a community. C. a population. D. an ecosystem. 2. Which of the following best describes

More information

Matter and Energy in Ecosystems

Matter and Energy in Ecosystems Matter and Energy in Ecosystems The interactions that take place among biotic and abiotic factors lead to transfers of energy and matter. Every species has a particular role, or niche, in an ecosystem.

More information

Lesson Plan Two - Ecosystems

Lesson Plan Two - Ecosystems Lesson Plan Two - Ecosystems Summary Students discuss what living things need to survive. They identify the abiotic and biotic components of an ecosystem and describe the roles and interactions of producers

More information

THE ECOSYSTEM - Biomes

THE ECOSYSTEM - Biomes Biomes The Ecosystem - Biomes Side 2 THE ECOSYSTEM - Biomes By the end of this topic you should be able to:- SYLLABUS STATEMENT ASSESSMENT STATEMENT CHECK NOTES 2.4 BIOMES 2.4.1 Define the term biome.

More information

4 th Grade Science Unit B: Life Sciences Chapter 3: Flow of Energy and Matter Lesson 1: How does energy flow?

4 th Grade Science Unit B: Life Sciences Chapter 3: Flow of Energy and Matter Lesson 1: How does energy flow? 4 th Grade Science Unit B: Life Sciences Chapter 3: Flow of Energy and Matter Lesson 1: How does energy flow? ecosystem Ecosystem is the living and nonliving things and the way they interact in an environment.

More information

5.1 Ecosystems, Energy, and Nutrients

5.1 Ecosystems, Energy, and Nutrients CHAPTER 5 ECOSYSTEMS 5.1 Ecosystems, Energy, and Nutrients Did anyone ever ask you the question: Where do you get your energy? Energy enters our world from the Sun but how does the Sun s energy become

More information

3 Types of Interactions

3 Types of Interactions CHAPTER 1 3 Types of Interactions SECTION Interactions of Living Things BEFORE YOU READ After you read this section, you should be able to answer these questions: What determines an area s carrying capacity?

More information

www.irishseedsavers.ie Natural surface water on earth includes lakes, ponds, streams, rivers, estuaries, seas and oceans.

www.irishseedsavers.ie Natural surface water on earth includes lakes, ponds, streams, rivers, estuaries, seas and oceans. www.irishseedsavers.ie POND LIFE FACT SHEET Natural surface water on earth includes lakes, ponds, streams, rivers, estuaries, seas and oceans. A pond is a small body of fresh water shallow enough for sunlight

More information

NOTE TO TEACHER: It is appropriate to introduce the mitochondria (where energy is made) as a major structure common to all cells.

NOTE TO TEACHER: It is appropriate to introduce the mitochondria (where energy is made) as a major structure common to all cells. 5.2.1 Recall the cell as the smallest unit of life and identify its major structures (including cell membrane, cytoplasm, nucleus, and vacuole). Taxonomy level: 1.1 and 1.2-A Remember Factual Knowledge

More information

Introduction to Ecology

Introduction to Ecology Introduction to Ecology Ecology is the scientific study of the interactions between living organisms and their environment. Scientists who study ecology are called ecologists. Because our planet has many

More information

Ecology- an ecosystem: a Biome: o They are either terrestrial or aquatic. rainforests, deserts, coral reefs

Ecology- an ecosystem: a Biome: o They are either terrestrial or aquatic. rainforests, deserts, coral reefs Topic 17: Ecology Ecology- The environment is an organism s surroundings o It includes:! biotic factors: Ecosystems! abiotic factors: an ecosystem: In order for an ecosystem to maintain life it must: -

More information

6.4 Taigas and Tundras

6.4 Taigas and Tundras 6.4 Taigas and Tundras In this section, you will learn about the largest and coldest biomes on Earth. The taiga is the largest land biome and the tundra is the coldest. The taiga The largest land biome

More information

Biology Keystone (PA Core) Quiz Ecology - (BIO.B.4.1.1 ) Ecological Organization, (BIO.B.4.1.2 ) Ecosystem Characteristics, (BIO.B.4.2.

Biology Keystone (PA Core) Quiz Ecology - (BIO.B.4.1.1 ) Ecological Organization, (BIO.B.4.1.2 ) Ecosystem Characteristics, (BIO.B.4.2. Biology Keystone (PA Core) Quiz Ecology - (BIO.B.4.1.1 ) Ecological Organization, (BIO.B.4.1.2 ) Ecosystem Characteristics, (BIO.B.4.2.1 ) Energy Flow 1) Student Name: Teacher Name: Jared George Date:

More information

5 th Grade Science Vocabulary Words

5 th Grade Science Vocabulary Words 5 th Grade Science Vocabulary Words abiotic factor A nonliving part of an ecosystem. acceleration Change in velocity with respect to time. action The force one object applies to a second, as in Newton

More information

Oikos: House and Ology: to Study Scientific discipline in which the relationships among living organisms and the interaction the organisms have with

Oikos: House and Ology: to Study Scientific discipline in which the relationships among living organisms and the interaction the organisms have with Oikos: House and Ology: to Study Scientific discipline in which the relationships among living organisms and the interaction the organisms have with their environments are studied. An Ecologist is someone

More information

Ecology. Abiotic Factors: non-living physical and chemical factors which pffect the ability of organisms to survive and reproduce.

Ecology. Abiotic Factors: non-living physical and chemical factors which pffect the ability of organisms to survive and reproduce. Biotic vs. Abiotic Ecology Abiotic Factors: non-living physical and chemical factors which pffect the ability of organisms to survive and reproduce. Some Abiotic Factors light intensity temperature range

More information

Prairie Food Chains & Webs Producers, Consumers & Decomposers

Prairie Food Chains & Webs Producers, Consumers & Decomposers Kansas Prairies s, s & Decomposers Science, Life Science, Reading, Math Materials Vocabulary worksheet Food Chain worksheet Overview To explore the organisms found on a prairie and identify the various

More information

Ecology limiting factors plant limiting factors field mouse nitrogen nitrogen ALL nitrogen returned to soil process major role; mutualism

Ecology limiting factors plant limiting factors field mouse nitrogen nitrogen ALL nitrogen returned to soil process major role; mutualism Ecology List some limiting factors that would affect a plant (such as a corn plant) population. Light, carbon dioxide concentration, temperature, nutrients in soil, water List some limiting factors that

More information

REVIEW UNIT 10: ECOLOGY SAMPLE QUESTIONS

REVIEW UNIT 10: ECOLOGY SAMPLE QUESTIONS Period Date REVIEW UNIT 10: ECOLOGY SAMPLE QUESTIONS A. Sample Multiple Choice Questions Complete the multiple choice questions to review this unit. 1. All of the following are density-dependent factors

More information

Relationships in Ecosystems. Vocabulary

Relationships in Ecosystems. Vocabulary Relationships in Ecosystems Vocabulary Relationships in Ecosystems Big Ideas Diversity and Evolution of Living Organisms Explore the scientific theory of evolution by relating how the inability of a species

More information

Holt Ch. 6 Biomes. Section 6.1 pg # 1-6

Holt Ch. 6 Biomes. Section 6.1 pg # 1-6 Holt Ch. 6 Biomes Section 6.1 pg 153-155 # 1-6 1. Describe how plants determine the name of a biome. Scientists name biomes after their vegetation because the plants that grow in an area determine what

More information

Prairie Food Chains & Webs Producers, Consumers, & Decomposers

Prairie Food Chains & Webs Producers, Consumers, & Decomposers Kansas Prairies Prairie Food Chains & Webs Producers, s, & Decomposers Life Science, Math, Reading, Science Materials Student Worksheet A: Vocabulary Student Worksheet B: Food Chain Overview To explore

More information

Ecology Module B, Anchor 4

Ecology Module B, Anchor 4 Ecology Module B, Anchor 4 Key Concepts: - The biological influences on organisms are called biotic factors. The physical components of an ecosystem are called abiotic factors. - Primary producers are

More information

Organism Interactions and Population Dynamics. 1. Which of the following interactions is an example of symbiosis?

Organism Interactions and Population Dynamics. 1. Which of the following interactions is an example of symbiosis? Organism Interactions and Population Dynamics 1. Which of the following interactions is an example of symbiosis? A. a population of hummingbirds migrates during the summer B. a mother bear feeds and protects

More information

Chapter 3 Communities, Biomes, and Ecosystems

Chapter 3 Communities, Biomes, and Ecosystems Communities, Biomes, and Ecosystems Section 1: Community Ecology Section 2: Terrestrial Biomes Section 3: Aquatic Ecosystems Click on a lesson name to select. 3.1 Community Ecology Communities A biological

More information

food webs reflect look out! what do you think?

food webs reflect look out! what do you think? reflect Imagine for a moment that you stay after school one day to clean up the classroom. While cleaning, you move some plants away from the sunny windows. A week later, you remember to move the plants

More information

Food Chains (and webs) Flow of energy through an ecosystem Grade 5 Austin Carter, Dale Rucker, Allison Hursey

Food Chains (and webs) Flow of energy through an ecosystem Grade 5 Austin Carter, Dale Rucker, Allison Hursey Food Chains (and webs) Flow of energy through an ecosystem Grade 5 Austin Carter, Dale Rucker, Allison Hursey References: Columbus Public Schools Curriculum Guide- Grade 5 GK-12 Biological Science Lesson

More information

3 Temperate and Polar Zones

3 Temperate and Polar Zones Name CHAPTER 17 Class Date Climate SECTION 3 Temperate and Polar Zones BEFORE YOU READ After you read this section, you should be able to answer these questions: What biomes are found in the temperate

More information

National 5. Unit 3. Life on earth. Ink exercise 1. Biodiversity and the distribution of life.

National 5. Unit 3. Life on earth. Ink exercise 1. Biodiversity and the distribution of life. National 5 Unit 3 Life on earth Ink exercise 1 Biodiversity and the distribution of life. Once completed and marked- Think about and list below the areas I need to work on: Multiple choice Tick one answer

More information

Ecosystems. The two main ecosystem processes: Energy flow and Chemical cycling

Ecosystems. The two main ecosystem processes: Energy flow and Chemical cycling Ecosystems THE REALM OF ECOLOGY Biosphere An island ecosystem A desert spring ecosystem Biosphere Ecosystem Ecology: Interactions between the species in a given habitat and their physical environment.

More information

Plant Adaptations. This cactus displays light-colored hair that helps shade the plant. Copyright

Plant Adaptations. This cactus displays light-colored hair that helps shade the plant. Copyright Plant Adaptations Plants have adaptations to help them survive (live and grow) in different areas. Adaptations are special features that allow a plant or animal to live in a particular place or habitat.

More information

STUDY GUIDE ECOLOGY. CHAPTER 21: Populations 1. An overview of ecology. Ecology is the study of interactions between organisms and their environment.

STUDY GUIDE ECOLOGY. CHAPTER 21: Populations 1. An overview of ecology. Ecology is the study of interactions between organisms and their environment. STUDY GUIDE ECOLOGY CHAPTER 21: Populations 1. An overview of ecology. Ecology is the study of interactions between organisms and their environment. 2. A Hierarchy of interactions: cells tissues organs

More information

Biomes An Overview of Ecology Biomes Freshwater Biomes

Biomes An Overview of Ecology Biomes Freshwater Biomes Biomes An Overview of Ecology Ecology is the scientific study of the interactions between organisms and their environments. Ecology can be divided into four increasingly comprehensive levels: Organismal

More information

The Virtual Woodland Worksheet

The Virtual Woodland Worksheet Food Chains All living things need food to give them energy to move and grow. A food chain can show us how living things get their food by showing us what feeds on what in a particular habitat. Food chains

More information

Tropical Dry Forest. Tropical Rain Forest. What I Discovered at the Zoo Name of animal that lives in this biome:

Tropical Dry Forest. Tropical Rain Forest. What I Discovered at the Zoo Name of animal that lives in this biome: Tropical Rain Forest Tropical rain forests are home to more species than all other land biomes combined. The leafy tops of tall trees extending up to 70 meters above the forest floor form a dense covering

More information

Communities, Biomes, and Ecosystems

Communities, Biomes, and Ecosystems Communities, Biomes, and Ecosystems Before You Read Before you read the chapter, respond to these statements. 1. Write an A if you agree with the statement. 2. Write a D if you disagree with the statement.

More information

Use this diagram of a food web to answer questions 1 through 5.

Use this diagram of a food web to answer questions 1 through 5. North arolina Testing Program EO iology Sample Items Goal 4 Use this diagram of a food web to answer questions 1 through 5. coyotes 3. If these organisms were arranged in a food pyramid, which organism

More information

6. Which of the following is not a basic need off all animals a. food b. *friends c. water d. protection from predators. NAME SOL 4.

6. Which of the following is not a basic need off all animals a. food b. *friends c. water d. protection from predators. NAME SOL 4. NAME SOL 4.5 REVIEW - Revised Habitats, Niches and Adaptations POPULATION A group of the same species living in the same place at the same time. COMMUNITY-- All of the populations that live in the same

More information

Grassland Food Webs: Teacher Notes

Grassland Food Webs: Teacher Notes Grassland Food Webs: Teacher Notes Alan Henderson ecosystem Objectives After completing this activity students will be able to: Create a food web and identify producers and consumers. Assign organisms

More information

food chains reflect How are these organisms important to one another? organism: a living thing

food chains reflect How are these organisms important to one another? organism: a living thing reflect Different plants and animals live together. Look at the picture of the garden. What organisms live there? Grass, trees, bugs, and birds live there. Fish and frogs live there, too. Can you think

More information

DESCRIBING DESERT, TAIGA, AND TUNDRA BIOMES

DESCRIBING DESERT, TAIGA, AND TUNDRA BIOMES Lesson B5 1 DESCRIBING DESERT, TAIGA, AND TUNDRA BIOMES Unit B. Science and Technology in Wildlife Management Problem Area 5. Desert, Taiga, and Tundra Biomes National Academic Standard. NS.9-12.1 Science

More information

Life Science Study Guide. Environment Everything that surrounds and influences (has an effect on) an organism.

Life Science Study Guide. Environment Everything that surrounds and influences (has an effect on) an organism. Life Science Study Guide Environment Everything that surrounds and influences (has an effect on) an organism. Organism Any living thing, including plants and animals. Environmental Factor An environmental

More information

Tropical rainforests grow in areas of high rainfall, they are found between the Tropic of Cancer and the Tropic of Capricorn.

Tropical rainforests grow in areas of high rainfall, they are found between the Tropic of Cancer and the Tropic of Capricorn. Tracking KS3 the Tropics In our Tropical Rainforest Biome you will discover how plants, animals and people of the Tropical Rainforest fit together. Let s Start! Look point 1 (Map on Left as you enter the

More information

FOOD CHAINS, FOOD WEBS AND ECOLOGICAL PYRAMIDS

FOOD CHAINS, FOOD WEBS AND ECOLOGICAL PYRAMIDS FOOD CHAINS, FOOD WEBS AND ECOLOGICAL PYRAMIDS SECTION 1 In an ecosystem, plants capture the sun's energy and use it to convert inorganic compounds into energy-rich organic compounds. This process of using

More information

Lesson 10 Succession. Overview. Students will: Content Background. Ti m e : 2 Cl a s s Pe r i o d s

Lesson 10 Succession. Overview. Students will: Content Background. Ti m e : 2 Cl a s s Pe r i o d s Lesson 10 Succession Overview Now that students have learned about the diversity of life and the complexity and differences in ecosystems and biomes, they will observe what happens when an ecosystem is

More information

PLANET EARTH: Seasonal Forests

PLANET EARTH: Seasonal Forests PLANET EARTH: Seasonal Forests Teacher s Guide Grade Level: 6-8 Running Time: 42 minutes Program Description Investigate temperate forests and find some of the most elusive creatures and welladapted plant

More information

1 Everything Is Connected

1 Everything Is Connected CHAPTER 1 1 Everything Is Connected SECTION Interactions of Living Things BEFORE YOU READ After you read this section, you should be able to answer these questions: What do organisms in an ecosystem depend

More information

Name Date Hour. Plants grow in layers. The canopy receives about 95% of the sunlight leaving little sun for the forest floor.

Name Date Hour. Plants grow in layers. The canopy receives about 95% of the sunlight leaving little sun for the forest floor. Name Date Hour Directions: You are to complete the table by using your environmental text book and the example given here. You want to locate all the abiotic (non-living) and biotic (living) factors in

More information

food chain Encyclopedic Entry

food chain Encyclopedic Entry This website would like to remind you: Your browser (Apple Safari 7) is out of date. Update your browser for more security, comfort and the best experience on this site. Encyclopedic Entry food chain For

More information

Commensalism is a symbiotic relationship in which one organism benefits and the other organism is not affected.. What they might ask:

Commensalism is a symbiotic relationship in which one organism benefits and the other organism is not affected.. What they might ask: B-6.1 Explain how the interrelationships among organisms (including predation, competition, parasitism, mutualism, and commensalism) generate stability within ecosystems. ecosystem - biotic community (all

More information

Principles of Ecology

Principles of Ecology 2 Principles of Ecology section 1 Organisms and Their Relationships Before You Read On the lines below, list the organisms that you have encountered today. You share the same environment with these organisms.

More information

TEK 8.11A: Food Webs & Symbiosis

TEK 8.11A: Food Webs & Symbiosis Name: Pd. Date: TEK 8.11A: Food Webs & Symbiosis TEK 8.11A: Describe producer/consumer, predator/prey, and parasite/host relationships as they occur in food webs within marine, freshwater, and terrestrial

More information

Predator-prey relationships

Predator-prey relationships Predator-prey relationships Can insects hunt for food? When you think of an animal hunting for its food, large animals such as lions may come to mind. But many tiny animals also hunt for their food. For

More information

STAAR Science Tutorial 52 TEK 8.11D: Food Webs & Symbiosis

STAAR Science Tutorial 52 TEK 8.11D: Food Webs & Symbiosis Name: Teacher: Pd. Date: STAAR Science Tutorial 52 TEK 8.11D: Food Webs & Symbiosis TEK 8.11A: Describe producer/consumer, predator/prey, and parasite/host relationships as they occur in food webs within

More information

Way Up in the Arctic by Jennifer Ward

Way Up in the Arctic by Jennifer Ward Way Up in the Arctic by Jennifer Ward Arctic north pole Arizona 32º latitude Arctic Arizona 5,800,000 square miles 114,000 square miles Arctic Hare Arctic Fox Arctic Tern Arctic Wolf Arctic Seal Beluga

More information

Introduction to Ecology. Lab practical next week. 1. Types of Ecology. What is ecology? Organismal ecology. Population ecology

Introduction to Ecology. Lab practical next week. 1. Types of Ecology. What is ecology? Organismal ecology. Population ecology Introduction to Ecology Reading: Chapter 50 Introduction, today Chapter 52 Population ecology, today and W Chapter 54 Ecosystem ecology, W&F Outline of Lecture 1. Branches of ecology 2. Factors affecting

More information

Habitat Comparison at the Garden

Habitat Comparison at the Garden Habitat Comparison at the Garden Several types of habitats are represented at the Atlanta Botanical Garden: tropical rainforest, desert, temperate deciduous forest and wetlands. During this activity students

More information

2. What kind of energy is stored in food? A. chemical energy B. heat energy C. kinetic energy D. light energy

2. What kind of energy is stored in food? A. chemical energy B. heat energy C. kinetic energy D. light energy Assessment Bank Matter and Energy in Living Things SC.8.L.18.4 1. What is energy? A. anything that takes up space B. anything that has mass C. the ability to conduct current D. the ability to do work 2.

More information

Following Energy Movement in Ecosystems

Following Energy Movement in Ecosystems 1.11 Following Energy Movement in Ecosystems You can begin to understand energy flows by categorizing living things by their trophic level in their ecosystem, according to how they gain their energy. The

More information

WORKSHEET 19: Shingle beach ecosystems food chains & webs

WORKSHEET 19: Shingle beach ecosystems food chains & webs SHINGLE BEACH ECOSYSTEMS, FOOD CHAINS AND FOOD WEBS The community of plants and animals in any habitat interact with the non-living environment, such as the soil and the atmosphere. The combination of

More information

Principles of Ecology

Principles of Ecology Principles of Ecology Chapter 2. pp. 33-61 Flexbook. pp. 709-746 Principles of Ecology Ecology the study of interactions that take place between organisms and their environments Living things are affected

More information

8 th Grade Science Organisms and their Environment Review

8 th Grade Science Organisms and their Environment Review 8 th Grade Science Organisms and their Environment Review #1 The tree is an example of a in the food web. Producers perform photosynthesis. A: Prey B: Decomposer C: producer D: Herbivore C. Producer #2

More information

This hands-on activity incorporates observing, classifying, predicting, sequencing, formulating models, and drawing conclusions.

This hands-on activity incorporates observing, classifying, predicting, sequencing, formulating models, and drawing conclusions. SCIENCE Science and the Environment 4 th Grade FOOD CHAINS Overview: All organisms, or living things, depend on other organisms for nutrients. The movement of nutrients through an environment is visualized

More information

Lesson 1. Objectives: ocus: Subjects:

Lesson 1. Objectives: ocus: Subjects: Lesson 1 The Web of Life Objectives: 1. Understand the concept of an ecosystem. 2. Understand the interdependence of members of an ecosystem. Subjects: 1. Ecology 2. Language 3. Art MATERIALS: Copies of

More information

Energy Flow Through an Ecosystem. Food Chains, Food Webs, and Ecological Pyramids

Energy Flow Through an Ecosystem. Food Chains, Food Webs, and Ecological Pyramids Energy Flow Through an Ecosystem Food Chains, Food Webs, and Ecological Pyramids What is Ecology? ECOLOGY is a branch of biology that studies ecosystems. Ecological Terminology Environment Ecology Biotic

More information

Tropical Rain Forest Tropical Rain Forest

Tropical Rain Forest Tropical Rain Forest Plant Adaptations Tropical Rain Forest Tropical Rain Forest Temperate Deciduous Forest Temperate Deciduous Forest Grassland Temperate Rain Forest Grassland Temperate Rain Forest Names of biomes/areas where

More information

The main source of energy in most ecosystems is sunlight.

The main source of energy in most ecosystems is sunlight. Energy in Ecosystems: Ecology: Part 2: Energy and Biomass The main source of energy in most ecosystems is sunlight. What is the amount of energy from the sun? 100 W/ft 2 The energy gets transferred through

More information

Ecosystems and Food Webs

Ecosystems and Food Webs Ecosystems and Food Webs How do AIS affect our lakes? Background Information All things on the planet both living and nonliving interact. An Ecosystem is defined as the set of elements, living and nonliving,

More information

ESA Study Guide Year 10 Science

ESA Study Guide Year 10 Science 1. What is ecology the study of? Then and now Questions from page 234 of 2. Why did Maori and European settlers burn forests and drain wetlands? 3. Give figures for four examples of a change that has occurred

More information

a. a population. c. an ecosystem. b. a community. d. a species.

a. a population. c. an ecosystem. b. a community. d. a species. Name: practice test Score: 0 / 35 (0%) [12 subjective questions not graded] The Biosphere Practice Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the

More information

Section 5.1 Food chains and food webs

Section 5.1 Food chains and food webs Section 5.1 Food chains and food webs The ultimate source of energy in an ecosystem comes from sunlight This energy is converted to an organic form using photosynthesis which is then passed between organisms

More information

The animals at higher levels are more competitive, so fewer animals survive. B.

The animals at higher levels are more competitive, so fewer animals survive. B. Energy Flow in Ecosystems 1. The diagram below shows an energy pyramid. Which of the following best explains why the number of organisms at each level decreases while moving up the energy pyramid? The

More information

8.2 - A Local Ecosystem:

8.2 - A Local Ecosystem: 8.2 - A Local Ecosystem: 1. The distribution, diversity and numbers of plants and animals found in ecosystems are determined by biotic and abiotic factors: Distinguish between the abiotic and biotic factors

More information

Deciduous Forest. Courtesy of Wayne Herron and Cindy Brady, U.S. Department of Agriculture Forest Service

Deciduous Forest. Courtesy of Wayne Herron and Cindy Brady, U.S. Department of Agriculture Forest Service Deciduous Forest INTRODUCTION Temperate deciduous forests are found in middle latitudes with temperate climates. Deciduous means that the trees in this forest change with the seasons. In fall, the leaves

More information

Climate, Vegetation, and Landforms

Climate, Vegetation, and Landforms Climate, Vegetation, and Landforms Definitions Climate is the average weather of a place over many years Geographers discuss five broad types of climates Moderate, dry, tropical, continental, polar Vegetation:

More information

Biodiversity and the Ecosystem (Lexile 910L)

Biodiversity and the Ecosystem (Lexile 910L) iodiversity and the Ecosystem (Lexile 910L) 1 Where is your special habitat? You, like a bird, a lizard, or even an ant, need a healthy habitat to survive. habitat is the place where an animal or plant

More information

Food Chains and Food Webs

Food Chains and Food Webs Program Support Notes by: Spiro Liacos B.Ed. Produced by: VEA Pty Ltd Commissioning Editor: Sandra Frerichs B.Ed, M.Ed. Executive Producers: Edwina Baden-Powell B.A, CVP. Sandra Frerichs B.Ed, M.Ed. You

More information

Producers, Consumers, and Food Webs

Producers, Consumers, and Food Webs reflect Think about the last meal you ate. Where did the food come from? Maybe it came from the grocery store or a restaurant. Maybe it even came from your backyard. Now think of a lion living on the plains

More information

Tropical Rainforest. Abiotic Factors Amount of Water, Sunlight, Soil, Precipitation

Tropical Rainforest. Abiotic Factors Amount of Water, Sunlight, Soil, Precipitation World Biomes A biome is an area of land that shares similar temperatures and precipitation. The observation of the temperature and precipitation over a period time make up a biome s climate. Each biome

More information

Grade 7. Objective. Students will be able to:

Grade 7. Objective. Students will be able to: Grade 7 Objective Students will be able to: Describe the carbon cycle in more detail: o Learn about the importance of carbon and the role it plays in photosynthesis and cellular respiration, Identify elements

More information

1.2 The Biosphere and Energy

1.2 The Biosphere and Energy 1.2 The Biosphere and Energy All activities require a source of energy a fuel. For example, to sustain a campfire, you need to keep it supplied with wood. To reach a destination by car, you need to have

More information

ANIMALS AND THEIR HABITATS: KS1 STUDENT RESOURCES

ANIMALS AND THEIR HABITATS: KS1 STUDENT RESOURCES ANIMALS AND THEIR HABITATS: KS1 STUDENT RESOURCES PLANT OR ANIMAL? (Lesson 1:1) Card sort task: print out and get the students to sort them into: Plants or Animals. Get the students to explain why they

More information

The Polar Climate Zones

The Polar Climate Zones The Polar Climate Zones How cold is it in the polar climate? Polar areas are the coldest of all the major climate zones The Sun is hardly ever high enough in the sky to cause the plentiful ice to melt,

More information

Which of the following can be determined based on this model? The atmosphere is the only reservoir on Earth that can store carbon in any form. A.

Which of the following can be determined based on this model? The atmosphere is the only reservoir on Earth that can store carbon in any form. A. Earth s Cycles 1. Models are often used to explain scientific knowledge or experimental results. A model of the carbon cycle is shown below. Which of the following can be determined based on this model?

More information

Study Guide. Main Idea Worksheets. Lesson Science Vocabulary Worksheets. Lesson Support Vocabulary Worksheets

Study Guide. Main Idea Worksheets. Lesson Science Vocabulary Worksheets. Lesson Support Vocabulary Worksheets Main Idea Worksheets Lesson Science Vocabulary Worksheets Lesson Support Vocabulary Worksheets IMPORTANT NOTICE ABOUT COPYING PAGES WITH BLUE ANNOTATIONS The blue annotations that appear in this book are

More information

AQUATIC ECOSYSTEMS & BIOMES

AQUATIC ECOSYSTEMS & BIOMES AQUATIC ECOSYSTEMS & BIOMES A) Name three general types of aquatic ecosystems and describe the salinity for each. Give an example for each. 1) 2) 3) B) MATCHING In the space provided, write the letter

More information

Chapter 36: Population Growth. Population Concepts. Population: Carrying Capacity: Critical Number: Growth Rate: Growth rate = Birth rate - Death rate

Chapter 36: Population Growth. Population Concepts. Population: Carrying Capacity: Critical Number: Growth Rate: Growth rate = Birth rate - Death rate Chapter 36: Population Growth Population: Population Concepts interbreeding group of same species Carrying Capacity: maximum population size an ecosystem can sustainably support Critical Number: minimum

More information

Unit. Terrestrial Biomes and Aquatic Ecosystems

Unit. Terrestrial Biomes and Aquatic Ecosystems Unit 1 Terrestrial Biomes and Aquatic Ecosystems Today s Objective: Describe characteristic biotic and abiotic components of aquatic and terrestrial ecosystems. Fossil evidence suggests that the frozen

More information

2.3 Mapping Earth s Physical Features A world physical features map shows information about. Physical Features. canyon. Word Bank

2.3 Mapping Earth s Physical Features A world physical features map shows information about. Physical Features. canyon. Word Bank Read Section 2.3. Write one or two sentences describing the type of thematic map you read about. Then match the physical features in the Word Bank to their correct locations on the illustration. An example

More information

Bio EOC Topics for Ecology, Evolution and Natural Selection:

Bio EOC Topics for Ecology, Evolution and Natural Selection: Bio EOC Topics for Ecology, Evolution and Natural Selection: UEvolutionU Difference between macroevolution and microevolution Sexual reproduction and natural selection are mechanisms of microevolution

More information

Pond Vocabulary Words and Meanings

Pond Vocabulary Words and Meanings Pond Vocabulary Words and Meanings Adapt: to adjust to a use or situation Aquatic: from or in the water Bacteria: tiny organisms, too small to be seen with the naked eye Carnivore: an animal that eats

More information

CHEETAHS: A PREDATOR S ROLE IN THE ECOSYSYTEM C H E E T A H C O N S E R V A T I O N F U N D

CHEETAHS: A PREDATOR S ROLE IN THE ECOSYSYTEM C H E E T A H C O N S E R V A T I O N F U N D CHEETAHS: A PREDATOR S ROLE IN THE ECOSYSYTEM Background food chains Cats and the Energy Cycle: The speed of a cheetah and the strength of a lion aid them in catching their prey. Big cats are predators

More information

Living Things and the Environment

Living Things and the Environment Living Things and the Environment (pages 6 11) Habitats (page 7) Key Concept: An organism obtains food, water, shelter, and other things it needs to live, grow, and reproduce from its environment. An organism

More information

Ocean Ecosystems. Target Audience: Middle School. Next Generation Science Standards* 5- LS2; MS- LS2 Ecosystems: Interactions, Energy, and Dynamics

Ocean Ecosystems. Target Audience: Middle School. Next Generation Science Standards* 5- LS2; MS- LS2 Ecosystems: Interactions, Energy, and Dynamics Ocean Ecosystems Abstract What s in the ocean? Only 5% of the ocean has been explored and yet it is the largest ecosystem in the world. It affects the entire planet and this creates a great need to understand

More information

ELEMENTARY-LEVEL SCIENCE TEST

ELEMENTARY-LEVEL SCIENCE TEST 4THE UNIVERSITY OF THE STATE OF NEW YORK SPRING 2008 GRADE 4 ELEMENTARY-LEVEL SCIENCE TEST WRITTEN TEST Student Name School Name Print your name and the name of your school on the lines above. The test

More information

3.1. Succession, Recovery, and Renewal in Natural Communities. A35 Starting Point. What Happens to a Vacant Lot?

3.1. Succession, Recovery, and Renewal in Natural Communities. A35 Starting Point. What Happens to a Vacant Lot? 3.1 Succession, Recovery, and Renewal in Natural Communities Here is a summary of what you will learn in this section: Ecosystems change in predictable ways known as succession. Ecosystems can establish

More information

Grasslands. Environmental Science Chapters 8

Grasslands. Environmental Science Chapters 8 Grasslands Environmental Science Chapters 8 Grassland Biome A grassland ecosystem is an area that receives more rainfall than a desert, but not enough to support the trees of a forest. These usually exist

More information

A. A biome is a particular physical environment that contains a characteristic group of plants and animals. B. Climate and Microclimate 1.

A. A biome is a particular physical environment that contains a characteristic group of plants and animals. B. Climate and Microclimate 1. Land Biomes A. A biome is a particular physical environment that contains a characteristic group of plants and animals. B. Climate and Microclimate 1. Climate is described by a climatograph. Two of the

More information

Ecosystem Ecology. Community interacts with abiotic factors. Objectives

Ecosystem Ecology. Community interacts with abiotic factors. Objectives Ecosystem Ecology Community interacts with abiotic factors Objectives Compare the processes of energy flow and chemical cycling as they relate to ecosystem dynamics. Define and list examples of producers,

More information

taiga Encyclopedic Entry boreal forest

taiga Encyclopedic Entry boreal forest This website would like to remind you: Your browser (Apple Safari 7) is out of date. Update your browser for more security, comfort and the best experience on this site. Encyclopedic Entry taiga boreal

More information