The use of fat as an energy storage tissue evolved due to
a. a diet that was high in fat.
b. the frequent inability to obtain food.
c. a diet high in carbohydrates.
d. excess food intake.
e. the need for insulation.
B
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What property of water allows it to stick to objects and make them wet?
What will be an ideal response?
Which of the following statements best describes the end result of bacterial conjugation?
a. The two cells have had an equal exchange of plasmids. b. One cell has lost a plasmid, while the other cell has gained one. c. One cell has lost a chromosome, while the other has gained one. d. One cell has given a copy of a plasmid to another cell and kept one copy for itself.
Complementary base pairing links
a. nitrogenous bases b. amino acids c. proteins d. phosphate group
A marine biologist makes a presentation about crustaceans to your biology class. He explains that he has recently received an NSF grant to study sessile crustaceans. You are only aware of one group of sessile crustaceans. This crustacean must be
A. a barnacle. B. a lobster. C. a crayfish. D. the nauplius. E. a shrimp.