During which epoch does a major extinction event begin?

a. Eocene
b. Oligocene
c. Miocene
d. Pleistocene
e. Recent


e

Biology & Microbiology

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Coral reefs, atolls, and islands are the result of the buildup of coral

(a) polyps. (b) medusae. (c) exoskeletons. (d) wastes.

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Salivary amylase:

A. starts the chemical digestion of carbohydrates in the mouth. B. starts the chemical digestion of carbohydrates in the stomach. C. starts the chemical digestion of proteins in the stomach. D. starts the chemical digestion of fats in the mouth. E. starts the chemical digestion of proteins in the mouth.

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Carbon fixation is a reduction reaction that converts inorganic CO2 into an organic molecule

a. True b. False

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Megaspores

a. are haploid. b. produce the embryo sac. c. produce gametophytes. d. are female. e. fit all of these descriptions.

Biology & Microbiology