In a marine environment, animals that are isoosmotic relative to their environment __________.
a. experience no net water loss by osmosis
b. experience significant water gain by osmosis
c. experience significant water loss by osmosis
d. must expend energy on the active transport of solutes from their bodies to the environment
e. can only survive in terrestrial environments
Answer: a. experience no net water loss by osmosis
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Detritivores _____
A) recycle chemical elements directly back to primary consumers B) synthesize organic molecules that are used by primary producers C) convert organic materials from all trophic levels to inorganic compounds usable by primary producers D) secrete enzymes that convert the organic molecules of detritus into carbon dioxide and water E) may be autotrophic or heterotrophic
The Karen Ann quinlan case is an example of
a. withholding treatment b. active euthanasia c. withdrawing treatment d. physician-assisted suicide e. b and d.
A noncompetitive inhibitor will
A) bind to free enzyme. B) bind to free product. C) decrease Vmax. D) decrease Km. E) bind to free enzyme and decrease Vmax.
The process of removing introns from the RNA to give a mature mRNA is called _________
a. transcription b. RNA splicing c. translation d. translocation e. none of the above