Semicircular canals are associated with the:
A. lateral line system.
B. tympanic membrane in insects.
C. vestibular system.
D. cochlea.
C
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Characteristics shared by primates include
A. large brain size in comparison to body size. B. grasping hands with opposable thumbs. C. All of the answer choices are correct. D. flat nails instead of claws. E. binocular vision and excellent depth perception.
The measure of the concentration of solutes in a solution is ____
a. tonicity b. osmosis c. hydrostatic pressure d. diffusion e. facilitated diffusion
What relationship has been shown by the data from Antarctic ice cores?
A) a positive correlation between carbon dioxide concentration and ice core temperature B) a negative correlation between carbon dioxide concentration and ice core temperature C) no correlation between carbon dioxide concentration and ice core temperature D) a confusing relationship between carbon dioxide concentration and ice core temperature
Paland and Lynch showed that sexual populations have fewer deleterious mutations than asexual populations. These results support the hypothesis that
A. asexual reproduction is associated with lower genetic diversity, resulting in the accumulation of highly deleterious mutations. B. sexual reproduction prevents fertilization with gametes carrying alleles with deleterious alleles. C. sexual reproduction produces fewer random mutations than asexual reproduction. D. sexual strains are associated with higher genetic diversity and thus accumulate more beneficial mutations than asexual strains. E. in sexual reproduction, the reassorting of alleles allows for the elimination of more detrimental alleles than in asexual reproduction.