The longer two populations are kept from interbreeding, the:
A) greater the mutation rate will be.
B) more recessive alleles will be expressed.
C) greater the chance one will go extinct.
D) more they will differ from one another in adaptations.
Answer: D
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Discuss the theory of secondary endosymbiosis and defend the theory by providing evidence that supports it
What will be an ideal response?
If a plant species exhibits maternal inheritance for leaf pigmentation, what is the phenotype of the parents of a variegated (green and white leaves) plant?
A. The maternal plant must be white and the paternal plant must be green. B. The maternal plant must be green and the paternal plant must be white. C. The maternal plant must be variegated and the paternal plant can be any color. D. Both the maternal and paternal plant must be variegated. E. The maternal plant must be variegated and the paternal plant must be white.
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In the knee-jerk reflex arc, the synapse between a sensory neuron and a motor neuron occurs where?
a. in the brain b. between the receptor and the spinal cord c. within the muscle of the leg d. within the spinal cord e. in the nerve leading to the spinal cord