A hormone may be
A. inactivated by its target cell.
B. activated by its target cell.
C. inactivated by nontarget cells.
D. excreted before it has a chance to act on a target cell.
E. All of the choices could be correct.
E
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An obstruction in the glomerulus would affect the flow of blood into the
A. efferent arteriole. B. distal convoluted tubule. C. proximal convoluted tubule. D. renal artery. E. afferent arteriole.
As a result of starvation or a protein-deficient diet, blood protein concentration
A) increases and water accumulates in tissue spaces. B) decreases and water accumulates in tissue spaces. C) decreases and water accumulates in cells. D) increases and water accumulates in cells.
The ____________ provide critical function in motivation, logical reasoning, expression of emotion, and social attitudes.
Fill in the blank(s) with the appropriate word(s).
Blood spurts back into the _____________ when the right atrium contracts.
a. aorta b. pulmonary trunk c. venae cavae d. pulmonary veins