A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone.
A.
False
B.
True
B. True
Explanation:
Hormones are indeed secreted molecules that travel through the bloodstream to reach target cells. These target cells have specific receptors for the hormone, allowing the hormone to bind and exert its effects. This is a fundamental principle of how endocrine signaling operates in the body.