Which of the following statements is NOT consistent with evolution by natural selection?
a) Natural selection can lead to speciation.
b) Individuals change during their lifespans to fit their environment better, and these changes can be inherited by their offspring.
c) Individuals in a population exhibit variation, some of which can be inherited by their offspring.
d) Natural selection can reduce genetic variation in a population.
e) Natural selection can prevent speciation from occurring.
Ans: b) Individuals change during their lifespans to fit their environment better, and these changes can be inherited by their offspring.
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A. protease inhibitors. B. nucleoside reverse transcriptase inhibitors. C. fusion inhibitors. D. nonnucleoside reverse transcriptase inhibitors. E. All of the choices are correct.
Guard cells control their volume, and thus size:
A. by increasing the amount of solutes such as K+ and Cl-. B. by reducing the amount of solutes such as K+ and Cl-. C. by increasing the amount of water in the cells without changing solute concentration. D. by decreasing the amount of water in the cells without changing solute concentration. E. by increasing the amount of CO2 in the cells.
Recent evidence suggests that the early fossils of Homo erectus may actually represent two species,
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A) dendrites B) axon C) synaptic knob D) cell body