Vasectomy and tubal ligation result in
A) a lack of semen or menstrual flow.
B) decreased levels of hormones.
C) inability to produce eggs or sperm.
D) an interruption of the path taken by the egg or sperm.
E) atrophy of the gonads.
D
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What reduces the rate at which bacteria converts dissolved organic matter to particulate organic matter?
a. Phages b. Dissolved organic matter availability c. Sunlight d. Depth
In a population growth curve affected by environmental resistance, the formula G = rN(K – N)/K is used to calculate the number of new individuals added after each time interval. In this equation K represents the
A. number of individuals added per unit time. B. carrying capacity. C. environmental resistance. D. number of individuals at the start of a time interval. E. per capita rate of increase.
If red bone marrow can be surgically removed from an individual, what would happen to that person in terms of the formed elements of the blood?
What will be an ideal response?
The five-toed limb of stem reptiles was modified into a limb suitable for digging. This is an example of ____.
A. convergent evolution B. morphological divergence C. analogous evolution D. morphological convergence E. distal modification