The mass extinction of the Permian period

A. All of the answer choices are correct.

B. was caused by a long series of volcanic eruptions.

C. was caused by a drop in sea level.

D. was caused by a rise in global temperature.

E. paved the way for the age of dinosaurs.


A. All of the answer choices are correct.

Biology & Microbiology

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a. the pancreas. b. the liver. c. the thymus. d. the thyroid. e. the adrenal cortex

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A nerve may be as long as

a. one inch. b. 12 inches. c. a few millimeters. d. 3 or 4 feet. e. one foot.

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?-TuRCs contain ________-tubulin and nucleate microtubule growth from MTOCs known as ________

Fill in the blank with correct word.

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