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1 Science Unit 6: Vocabulary List One tundra desert coniferous forest deciduous forest rainforest grassland aquatic biome habitat environment ecosystem species The coldest of the biomes, located at the top of the world. The soil is frozen. Permafrost, or permanent ice, usually exists within a meter of the surface. Water is unavailable during most of the year. The driest of all the biomes as it receives very little rainfall. High daytime temperatures and low nighttime temperatures make survival very difficult. This is located between the tundra to the north and the deciduous forest to the south. Consists mostly of trees that grow needles instead of leaves. Found between the polar regions and the tropics, this area is exposed to warm and cold air masses, which gives this area all four seasons. Consists of trees that grow leaves and flowered plants. Located close to the equator. There are two types of these, tropical and temperate. Consists of three layers being the canopy, understory, and the floor. Open, generally flat areas of grass. A few trees may be found along streams, but not many due to the lack of rainfall. Covering nearly 75% of the Earth s surface. Can be broken down into two basic regions as freshwater or marine. A distinct ecological community of plants and animals living together in a particular climate. The natural home or environment of an animal, plant, or other organism. The surroundings or conditions in which a person, animal, or plant lives or operates. A biological community of interacting organisms and their physical environment. A group of living organisms consisting of similar individuals.

2 Science Unit 6: Vocabulary List Two ecosystem freshwater ecosystem marine ecosystem biome environment niche community habitat biotic abiotic limiting factors A biological community of interacting organisms and their physical environment. ex. Rivers, streams, ponds, lakes, wetlands ex. Shorelines, temperate oceans, tropical oceans A distinct ecological community of plants and animals living together in a particular climate. The surroundings or conditions in which a person, animal, or plant lives or operates. The position or function of an organism in a community of plants and animals. A group of interacting populations occupying a given area. The natural home or environment of an animal, plant, or other organism. Living organisms. Non-living An environmental factor that tends to limit population size.

3 Science Unit 6: Vocabulary List Three Name: adaptation adapt migration camouflage mimicry The change that living things go through to fit better with their environment. To change. To journey between different areas at specific times of the year. A physical adaptation (coloring or covering) that makes animals, people, and objects look like their surroundings. To mimic or copy another. conserve To use or manage wisely. To preserve or safe. producers consumers decomposers herbivores carnivores omnivores Make their own food. Ex. green plants Animals that get their energy from producers or from organisms that eat producers. Plants and animals that break down dead plants and animals into organic materials that go back into the soil. Animals that eat only plants. Animals that eat herbivores and sometimes other carnivores. Animals that eat both plants and animals.

4 predator prey Any carnivorous animal that exists by preying on other organisms. An animal hunted or seized for food, especially by a carnivores animal. **** Previously Studied Words **** biome environment ecosystem species niche community habitat biotic A distinct ecological community of plants and animals living together in a particular climate. The surroundings or conditions in which a person, animal, or plant lives or operates. A biological community of interacting organisms and their physical environment. A group of living organisms consisting of similar individuals. The position or function of an organism in a community of plants and animals. A group of interacting populations occupying a given area. The natural home or environment of an animal, plant, or other organism. Living organisms. abiotic limiting factors Non-living An environmental factor that tends to limit population size.

5 Science Unit 6: Vocabulary List Four symbiosis commensalism mutualism parasitism The types of relationships between two species. The relationship between two species when one isn t helped nor harmed. The relationship between two species and both benefit. The relationship between two species when a parasite can live inside or outside the other species, causing harm to it.

6 Science Unit 6: Vocabulary List Five overpopulation deforestation pollution recycling reduce A condition in which the number of a given species is greater than the environment can handle. The large-scale clearing of trees by humans who use the cleared land for growing crops, grazing livestock, or the trees for timber and wood products. The introduction of any harmful substance into the environment at a faster rate than it can be cleansed. The three main types are: air, water, and ground. To use something old to make something new. To make something smaller. reuse conservation hazard biohazard To use something again. To protect the diversity of life and prevent the extinction of plants and animals. A situation that poses a level of threat to life, health, property, or environment. A substance that poses a threat to the health of living organisms.

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