The viscosity of blood is due more to the presence of ________ than to any other factor.
A. sodium
B. albumin
C. nitrogenous wastes
D. erythrocytes
E. fibrin
Answer: D
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ACE inhibitors work by a. blocking electrolyte channels
b. causing vasoconstriction. c. pulling fluid into the renal tubules. d. blocking the conversion of angiotensin I to angiotensin II.
The neurotransmitter between muscle cells and the nervous system cells is _____.?
A) ?epinephrine B) ?acetylcholine C) ?norepinephrine
All of the following occur when a rod is stimulated by light, except
A) ganglion cells pick up changes in activity in the bipolar cells. B) the retinal changes to a more linear shape. C) neurotransmitter release changes. D) Na+ permeability changes. E) ATP is hydrolyzed.
Reproductive organs are called gametes.
Answer the following statement true (T) or false (F)