Three populations of an organism, each with drastically different external markings, but still members of the same species, would be called _______
A. homologs
B. mutants
C. communities
D. alleles
E. morphs
E
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A friend asks you to explain the difference between atherosclerosis and arteriosclerosis. You say, "Well
A. atherosclerosis and arteriosclerosis are nearly the same and usually occur after a stroke." B. atherosclerosis is a condition that results from having angina pectoris occurring in the arteries of the heart, while arteriosclerosis results from the accumulation of cholesterol deposits in the arteries." C. atherosclerosis is a condition that results from the accumulation of cholesterol deposits in the arteries, while arteriosclerosis results from too much calcium being deposited in the arteries." D. atherosclerosis is a condition that results from too much calcium being deposited in the arteries, while arteriosclerosis results from the accumulation of cholesterol deposits in the arteries." E. atherosclerosis is a condition that results from too much calcium being deposited in the arteries, while arteriosclerosis results from having angina pectoris occurring in the arteries of the heart."
The internal pH of most cells is near neutral. This allows
a. water to break down into H+ and OH-. b. enzymes within the cells to act at peak efficiency. c. the buffers produced within the body to affect these cells. d. enzymes outside of these cells to function. e. rapid fluctuations between acidic and basic conditions within the cells.
The simplest sugars are called ____________________, and two of these sugars linked together form a(n)
____________________. Fill in the blank(s) with the appropriate word(s).
Which of the following are correctly paired with its description?
A) Archaea: cell walls are composed of surface-layer proteins B) Fungi: cell walls are composed of chiti C) Bacteria: cell walls are composed of peptidoglycan D) All of the choices