Which cell combats most bacterial infections?
A. T lymphocyte
B. NK cells
C. Monocytes
D. B lymphocyte
Answer: D
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The __________ nerve carries sensory fibers for sight.
Fill in the blank(s) with the appropriate word(s).
The term "newborn" refers to the period from birth through _____, whereas the term
"infant" refers to the period from _____. A) 3 months; 3 months to 6 months B) the first year; the first year to the second year C) the first four weeks; the first month to 1 year D) one week; the second week through the second year
Which segment of the renal tubule acts as a countercurrent multiplier?
a) collecting duct b) nephron loop c) convoluted tubule
Smooth muscle _____________.
a. has long, cylindrical cells b. has striations c. is under involuntary control d. contains intercalated discs