New alleles that appear by mutation
a. are inherently disadvantageous to their bearers.
b. are seldom advantageous or disadvantageous in themselves.
c. either have or lack survival value only in the context of their environment.
d. are seldom advantageous or disadvantageous in themselves and either have or lack
survival value only in the context of their environment.
e. are inherently disadvantageous to their bearers and are seldom advantageous or
disadvantageous in themselves.
D
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A group of individuals of the same species occupying a given area defines a(n):
a. community b. ecosystem c. population d. biosphere e. habitat
The letter “A” from the above figure represents
a. ectoderm. b. endoderm. c. mesoderm. d. neural plate. e. all of these.
In eukaryotic cells, the electron transport chain occurs in the
What will be an ideal response?
If within a large population no mutations occur, no migration occurs, all mating is random, and each individual has an equal chance of reproducing, which of the following will probably happen?
A) A bottleneck will occur. B) A change in allele frequency will lead to rapid evolution. C) No evolution will occur. D) Extinction will occur.