A) are secreted by the adrenal medulla.
B) include the glucocorticoids, mineralocorticoids, and androgens.
C) stimulate the membranes of the target cells to produce the second chemical messenger, cAMP.
D) are secreted by the pancreas.

A) Low plasma levels of calcium
B) High plasma levels of potassium
C) High plasma levels of glucose
D) Low blood volume

A) ACTH, TSH, and somatotropic hormone.
B) cortisol, aldosterone, and testosterone.
C) epinephrine, norepinephrine, and estrogen.
D) insulin, glucagon, and cortisol.