Competitive exclusion is based on the idea that
a. one species will hold some sort of
advantage over the other one.
b. no two species can completely occupy the
same niche.
c. the more two species overlap in their
capacity to obtain and use resources the less
likely they are to coexist.
d. all of these are true.
e. none of these are true
D
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About 80% of the alleles present in thoroughbred horses can be dated back to 31 known ancestors from the late eighteenth century. As a result, one would expect _____
A. random mating. B. Hardy-Weinberg equilibrium. C. low rates of mutation. D. many polymorphic alleles. E. little variation in physiology and behavior.
Cone cells most likely evolved from:
A. rhodopsin B. retinal C. rod cells D. ommatidia
The artery is located at the wrist, on the same side as the thumb.
During which phase of mitosis are the nuclei reformed?
a. anaphase b. prophase c. cytokinesis d. telophase e. metaphase