Which of the following is a building block of carbohydrates?
a. glycerol
b. nucleotide
c. simple sugar
d. monosaccharide
e. glucose
E
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Large, uniform distances typically separate individual panda bears from each other. What type of population distribution do pandas exhibit?
A. random distribution B. logistic distribution C. clustered distribution D. over-dispersed distribution E. sinusoidal distribution
One mechanism that some animals use to limit heat loss in cold environments is
A. vasoconstriction of veins. B. vasoconstriction of the precapillary sphincters in the skin. C. increasing cardiac output. D. vasodilation of below surface blood vessels. E. vasodilation of the near surface blood vessels.
Humus includes all of the following EXCEPT
a. feces. b. dead organisms. c. leaf litter. d. weathered rock. e. decomposing organic matter.
In an experiment on the effects of deforestation of a portion of a northern temperate deciduous forest, all the trees were removed from a small mountainside watershed area and herbicides were applied for three years to prevent regrowth. Measurements of the concentration of calcium (an important nutrient) in runoff water were taken both before and after the deforestation. Monthly measurements also were made in a similar watershed in another part of the same forest that had been left undisturbed. The findings are displayed in the graph below. (There is an image in your packet #101-105) 2002 test Which of the following factors affecting the hydrologic cycle would have the LEAST impact on calcium loss from the disturbed watershed?
(A) Total precipitation (B) Surface runoff (C) Evaporation (D) Transpiration (E) Porosity of soil