Multiple Choice
Which of the following statements about hormones is false?
A) Hormones are secreted by endocrine glands.
B) Hormones are analogous to on-off switches.
C) Soon after secretion, hormones reach their maximum concentration in the blood.
D) Hormones act over a period of time, measured by their half-life.
E) Several receptors may mediate actions of a single hormone.
Correct Answer:

Verified
Correct Answer:
Verified
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