Proteins regulate the acid-base balance of the blood by ________.
A. transporting iron
B. releasing nitrogen
C. binding Na+
D. removing CO2 from the blood
E. acting as buffers
Answer: E
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Structures in the head are innervated by the sympathetic division by postganglionic fibers originating in (the)
A) superior mesenteric ganglion. B) inferior cervical ganglion. C) inferior mesenteric ganglion. D) superior cervical ganglion. E) None of the answers are correct.
The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate
a. True b. False Indicate whether the statement is true or false
A pilus is a ________.
A. sensory nerve fiber around the base of a hair B. gland associated with a hair follicle C. tiny muscle that moves a hair D. hair follicle E. hair
Ellipsoid joints
A. are actually modified ball and socket joints. B. are multiaxial joints. C. allow free rotation. D. are found between adjacent vertebra. E. are modified pivot joints.