A substance that will increase the rate of a chemical reaction without being permanently changed is called a/an
A. oxidator.
B. reducing agent.
C. catalyst.
D. solute.
C
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Which group of muscles forms a thick, fleshy mass at the base of the thumb?
A. Midpalmar group B. Abductor digit group C. Dorsal interossei group D. Thenar group E. Hypothenar group
Molecules that do not readily interact with water are called
A) inert. B) stable. C) hydrophobic. D) unstable. E) hydrophilic.
Air moves out of the lungs when the pressure inside the lungs is ________
A) None of the listed responses is correct. B) less than the pressure in the atmosphere C) equal to the pressure in the atmosphere D) greater than the pressure in the atmosphere
In males, androgens are required for ________.
A. maintenance of accessory sex organs B. regression of the wolffian ducts during embryonic development C. development of the Müllerian ducts D. initiation of spermatogenesis at puberty