Which is an example of acclimatization?
A) An organism changes the lipid composition of its cell membranes to optimize membrane fluidity at different environmental temperatures.
B) A fish expresses enzymes with similar temperature optima to catalyze the same reactions in summer and winter.
C) A mammal's hair gradually turns gray as it ages.
D) Humans gradually adapt to increases in altitude by decreasing red blood cells.
E) Humans quickly close a wound caused by an accidental amputation rather than regenerating the lost part.
Correct Answer:
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Q164: A weight lifter does multiple sets of
Q165: Most endotherms are
A) fishes and birds.
B) birds
Q166: A chemical reaction has a Q10 of
Q167: Q10 describes the
A) pH sensitivity of a
Q168: Which statement is correct?
A) Endotherms' body temperatures
Q170: Behavioral thermoregulation
A) occurs only in ectotherms.
B) allows
Q171: Heterotherms differ from endotherms in that only
Q172: Which statement is true?
A) A temperature-insensitive reaction
Q173: The Q10 describes the temperature sensitivity of
Q174: Refer to the graph. 
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