Amphibians can accomplish gas exchange using ____

a. gills only
b. lungs only
c. respiration through the skin only
d. both gills and lungs
e. gills, lungs, and respiration through the skin


ANSWER: e

Biology & Microbiology

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Answer the following statement(s) true (T) or false (F)

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Which of the following terms are mismatched?

A. corepressor - a protein that binds to the repressor protein and results in inactivation of the operon B. repressor - protein that is capable of turning off the operon C. inducer - a protein that inactivates the repressor D. cAMP - a molecule that accumulates when glucose concentration is low E. regulatory gene - serves as the on or off switch for the operon

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A cotyledon is indicated by

a. A. b. B. c. C. d. D. e. E.

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The hormone ________ promotes both mammary gland development and milk production

Fill in the blank(s) with correct word

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