Final Test Life Science

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LIFE SCIENCE FINAL TEST (120 minutes) 1. Which best describes a craniate? A. A fish with a notochord B. A jawless fish C. A bilaterally symmetrical animal D. A chordate with a head E. A fish with a backbone 2. What does the word 'chondrichthyes' mean? A. bony fish B. lobe-finned C. cartilaginous fish D. jawless fish E. ray-finned 3. What type of worm is an earthworm? A. spongeworm B. flatworm C. roundworm D. segmented worm

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4. Which is completely extinct? A C B D 5. Fish have a closed circulatory system. What does this mean? A. The blood is not contained in tubes or pumped by a heart. B. They have arteries and veins that contain and carry the blood. C. They do not require oxygen to survive. D. They are warm-blooded.

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6. What is the larval stage of the amphibian? A. cocoon B. tadpole C. caterpillar D. maggot 7. Reptiles are ectothermic. How do they stay warm on cool days? A. Stay in the shade B. Lay out in the sun C. Bury in the cool mud D. Stay in the water 8. What is the primary function of a down feather? A. Flying B. Excretion C. Insulation D. Digestion

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9. Lampreys belong to which group? A. Jawless fish B. Cartilaginous fish C. Ray-finned fish D. Lobe-finned fish

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10. A. waterfowl B. songbird C. flightless D. bird of prey 11. Which type of bone makes up approximately 80% of the human skeleton? A. Irregular Bone B. Spongy Bone C. Compact bone D. Flat Bone E. Short Bone 12. Why do bones need hyaline? A. It's cartilage that can elongate, allowing bones to grow. B. It helps reabsorb bone tissue. C. It's where red blood cells are made. D. It helps to prevent osteoporosis.

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13. Complete the conversation between an adolescent boy and his doctor: Dr: You might experience a few more growth spurts, but that will eventually stop in a few years. Bobby: Why do bones stop growing? Dr: _____ A. Your bones stop growing when hyaline cartilage of the epiphyseal plate becomes fibrous cartilage. B. Your bones stop growing when hyaline cartilage of the epiphyseal plate becomes bone. C. Your bones stop growing when elastic cartilage of the epiphyseal plate becomes bone. D. Your bones stop growing when hyaline cartilage of the epiphyseal plate becomes elastic cartilage.

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14. The human body is made up of trillions of which of the following? A. cells B. systems C. organisms D. organs 15. What level of organization contains multiple organs that work together for a similar function within the body? A. cell system B. organ system C. singular system D. tissue system 16. What is the basic unit of structure in a living thing? A. cell B. nucleus C. stem D. atom

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17. Kidneys, livers, and lungs are examples of which of the following? A. cells B. bones C. tissues D. organs 18. What kind of tissue is skin? A. Muscle B. Cardiac C. Epithelial D. Nerve

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19. Which tissue protects the body and organs? A C B D 20. Which is NOT a short bone? A. phalanges B. femur C. carpals D. tarsals 21. This is a picture of skeletal muscle tissue.

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Which is TRUE about skeletal muscles? A. They are not striated. B. They are found in the heart. C. They tire quickly. D. They are involuntary 22. Which vitamins are stored in fat? A. Vitamins B and C B. Vitamins A, D, E, K C. Vitamins A, B, C, D, E D. Vitamins B, C, K 23. What is the primary function of molars? A. bite or tear off pieces of food B. tear and shred meat C. grind food into little pieces D. filter water before it is swallowed 24. The heart is the most important organ in the circulatory system. What is the main function of the circulatory system?