In its travel through the human body, blood leaving a capillary bed first enters __________.
a) veins
b) arteries
c) venules
d) arterioles
Answer: c) venules
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Ammonification is the conversion of _________to NH3 and NH4.
A. living plant matter B. primary production C. inorganic nitrogen D. carbon isotopes E. None of these choices are correct.
The most important receptors for steady touch are
a. Pacinian corpuscles. b. Meissner's corpuscles. c. Merkel's discs. d. Ruffini endings. e. free nerve ending.
Bacillus infernus is a bacterial species that may be found living
a. at 75°C (167°F) on rocks 3 kilometers beneath earth's surface. b. in our vegetables c. in glaciers. d. at 37°C in our body. e. in all of these locations.
Which of the following is a complex carbohydrate that cannot be digested?
A) disaccharides B) starches C) fibers D) high fructose corn syrup