Which analgesic relieves pain by mimicking the action of endorphins?
a. aspirin
b. ziconotide
c. NSAIDS
d. morphine
e. acetaminophen
ANSWER: d
Biology & Microbiology
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The gametophyte is green and nutritionally independent in
A. mosses, liverworts, and ferns. B. angiosperms. C. gymnosperms. D. tracheophytes. E. seed plants.
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Toward the end of the Proterozoic eon, multicellular animals emerged. The first animals were
A. Fish. B. Reptiles. C. Invertebrates. D. Chordates. E. Tetrapods.
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Glands are derived from _____ tissue
a. epithelial c. muscle b. connective d. nervous
Biology & Microbiology
Blood flow distribution can be adjusted by
adjusting the diameter of the
a. arteries. b. capillaries. c. arterioles. d. veins. e. venules.
Biology & Microbiology