Nonsteroid hormones ________ pass across the plasma membrane; they cause the target cells to ________ that produce the characteristic effects of the hormones.
A. can; synthesize specific proteins
B. cannot; activate or inactivate the cellular enzymes
C. can; activate or inactivate the cellular enzymes
D. cannot; synthesize specific proteins
Answer: B
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A) The body needs to increase its number of red blood cells. B) The body needs to have stronger muscle contractions. C) The body has a greater demand for oxygen. D) The body has a lower demand for nutrients.
The muscle movement that enables a joint to bend is the ________
A) Extension B) Extensor C) Flexion D) Flexor
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