In ciliates, the ____ is used for ____.
A. gullet; digestion
B. cilia; flexible support
C. pellicle; digestion
D. contractile vacuole; food gathering
E. pellicle; water balance
Answer: A
Biology & Microbiology
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a. one b. two c. three d. four
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When the amount of oxygen in the blood falls, the kidneys release ____
a. oxygen b. erythropoietin c. carbon dioxide d. iron e. growth hormone
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The formula for glucose is C6H12O6. What is the formula for a polymer made by linking ten glucose molecules together by dehydration synthesis?
A. C60H111O51 B. C60H100O50 C. C60H120O60 D. C60H102O51
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The main form(s) of nitrogen taken up by plant roots and useful to plants is/are
A. N-N. B. nitrite and nitrate. C. nitrate and ammonia. D. nitrite. E. ammonia and N-N.
Biology & Microbiology