Each molecule of hemoglobin can carry up to ________ oxygen molecules
A) 1
B) 2
C) 3
D) 4
D
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Consumers are ________
A) organisms that feed on soils and soil nutrients B) organisms that feed on decomposers C) organisms that feed on one another D) organisms that feed on dead organic matter E) organisms that feed on other living organisms
The relationship between the insolation curve and the air temperature curve on a graph of daily surface energy
A) They coincide at noon. B) exhibits a lag of several hours between the plotted lines. C) The warmest time of day is immediately before sunset, corresponding with maximum radiant energy. D) Little or no relationship exists between the two variables. E) Peak temperatures occur near noon, whereas peak insolation receipt is at 3:00 or 4:00 P.M.
Near the snout of a glacier, flow is often:
a. compressive b. extending c. accelerating d. Newtonian
With 5% of the world's population, the United States consumes what proportion of the world's energy?
A) one-twentieth (5%) B) one-quarter (25%) C) one-half (50%) D) three quarters (75%) E) almost all (95%)