During resting exhalation in humans, the diaphragm ____ and the internal intercostal muscles ____

a. contracts; relax
b. relaxes; contract
c. contracts; contract
d. relaxes then contracts; contract then relax
e. relaxes; relax


ANSWER: e

Biology & Microbiology

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A Barr body is a(n) ____

a. activated X chromosome b. inactivated X chromosome c. immature trophoblast

d. immature blastocyst e. mature blastocyst

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____ during prophase of prophase I. 

A. Chromosomes become visible B. Chromosomes synapse and cross-over C. Chromosomes separate D. DNA replication occurs

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Starch is a long chain of sugars commonly found in foods such as corn, grain, potatoes, peas, and beans.

a. true b. false

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