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Which of the following describes the exponential growth of a species?
A. The rate of population increase stays constant.
B. The number of animals increases by the same amount each year.
C. The number of animals increases slowly at first, then quickly, then
levels off.
D. The number of animals suddenly drops.
Answers: 3
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Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit. there is a precise compatibility between the active site and the lactose molecule. specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed. reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.
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Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?
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Which of the following describes the exponential growth of a species?
A. The rate of population inc...
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