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1 Name: Period : Life Sciences-Benchmark A, B, C and D Jaguar Review: Life Science 1. What is the role of the mitochondrion in cells? A. It converts sunlight to energy. B. It controls all functions of the cell. C. It transports water throughout the cell. D. It breaks down sugar to release energy. 2. What is the relationship between tissues and organs? A. Organs are made from one type of tissue. B. Tissues are made from one type of organ. C. Tissues are made from different types of organs. D. Organs are made from different types of tissues. 3. Which cell structure carries out a function for a cell that is similar to the function that bark carries out for a tree? A. cell wall B. nucleus C. chloroplast D. mitochondrion 4. The diagrams below show the digestive systems of an earthworm and a bird. Digestive System of a Worm Digestive System of a Bird Earthworms and birds have strong muscular gizzards. The gizzard grinds food into small bits before it passes on to the intestine. Mammals, in contrast, do not have gizzards. Why do earthworms and birds need to have gizzards but mammals do not? A. Earthworms and birds are not equipped to chew food. B. Earthworms and birds eat food that is difficult to digest. C. Earthworms and birds have intestines that work inefficiently. D. Earthworms and birds do not have stomachs to mix moistened food. 5. Which is an example of a group of cells with a common structure and function? A. stomach B. muscle tissue C. mitochondria D. digestive system

2 6. Some one-celled organisms can reproduce by the process of A. hormone secretion B. metamorphosis C. fertilization D. cell division 7. What are genes composed of? A. offspring B. DNA C. cells D. traits Base your answers to questions 8 and 9 on the diagram below which shows a model of human inheritance. 8. The parent whose genes are aa A. Must be dominant. B. Has a straight hairline. C. Has a peaked hairline. D. May have AA offspring. 9. The diagram shown above is called a A. Punnett square B. Pedigree chart C. Dichotomous key D. Flowchart 10. Cancer is most often the result of A. Abnormal cell division B. Natural selection C. Bacterial infection D. Biological adaption 11. The diagram below shows two different-colored moths resting on a tree trunk. How does this difference in pattern and color affect the moths ability to survive in the environment? A. The dark moth s pattern will help it hide from predators. B. The dark moth s pattern will not help it hide from predators. C. The light moth s color will not allow its predators to see it better. D. The dark moth does not blend in with the tree, so it can not hide.

3 Base your answers to questions 12 and 13 on the diagram below, which shows a partial food web. 12. How many organisms in this food web feed on the mice? A. 5 B. 2 C. 3 D Which group of organisms is missing from this food web? A. carnivores B. herbivores C. omnivores D. decomposers 14. The diagram below shows changes that a butterfly undergoes as it develops from an egg into an adult. Which process is illustrated in the diagram? A. mutation B. photosynthesis C. germination D. metamorphosis 15. The diagram above shows a sequence of environmental changes in an area over a long period of time. Which statement best describes the changes shown in the diagram? A. Over time, one natural area is replaced by another. B. Over time, the number of fish increases. C. The environment goes through seasonal changes. D. Precipitation follows cloud formation. 16. Populations living in one place form a A. community B. system C. habitat D. species

4 Base your answers to questions 17 through 19 on the woodland and pond ecosystems illustrated below. The members of these ecosystems interact with one another as well as with the nonliving environment. 17. What is one consumer shown in this ecosystem? A. grass B. green plants C. trees D. frog 18. What is one producer shown in this ecosystem? A. human B. plants C. deer D. turtles 19. What is the primary source of energy for this ecosystem? A. green plants B. humans C. sunlight D. air and water 20. Which situation is the best example of ecological succession? A. An organism survives a difficult winter. B. The populations in an area remain the same. C. One species replaces another species in an ecosystem. D. Each of several species uses the same amount of resources.

5 21. What interaction between organisms would be described as parasitic? A. a mosquito feeding on the blood of a dog B. a bee gathering nectar and pollen from a flower C. a cleaner shrimp picking dead skin off a large fish D. a nonpoisonous snake mimicking a poisonous snake 22. An animal becomes extinct. What will happen to the animals above it and below it in the food chain? A. Animals above it will increase, and animals below it will decline. B. Animals above it and animals below it will both decline. C. Animals above it and animals below it will both increase. D. Animals above it will decline, and animals below it will increase. 23. Which structures do plant cells contain that animal cells do not? A. chloroplasts and mitochondria B. nuclei and cell walls C. cell walls and chloroplasts D. mitochondria and nuclei 24. Which of the following describes the organization of the structures that make up multicellular living organisms from most simple to most complex? A. Tissues, organs, cells, organ systems B. Cells, tissues, organs, organ systems C. Organ systems, organs, tissues, cells D. Cells, organs, tissues, organ systems 25. Which of the following statements is true about asexual reproduction? A. The diversity of the species is increased. B. More than one offspring is created. C. All the inherited traits come from one parent. D. The rate of reproduction is much slower.

6 26. Which of the following statements about sexual reproduction is true? A. The offspring inherit none of their parents traits. B. The offspring inherit all of one parent s traits. C. The offspring inherit a mixture of both parents traits. D. The offspring inherit a completely random set of traits. 27. Which situation is the best example of ecological succession? A. An organism survives a difficult winter. B. The populations in an area remain the same. C. One species replaces another species in an ecosystem. D. Each of several species uses the same amount of resources. 28. Which of these lists three abiotic factors necessary for a population of deer to survive in a forest ecosystem? A. water, plants and sunlight B. soil, rocks, and plastic C. sunlight, air and trees D. sunlight, soil and water 29. Pea plants have a covering on their seeds, known as a pod. A green pod is the dominant trait, and a yellow pod is a recessive trait. Which statement must be true for the parents of a plant with a yellow pod? A. One parent had two genes for a green pod. B. One parent had two genes for a yellow pod. C. Both parents had at least one gene for a green pod. D. Both parents had at least one gene for a yellow pod. 30. Termites eat wood but cannot digest it. Protozoans live in the termites stomachs and use enzymes to break down the wood. The digested wood provides nutrition for both the termites and the protozoans. What type of relationship is this? A. mutualism B. parasitism C. predation D. commensalism

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