Which of the following is not involved in natural selection?
A. there is always competition for resources
B. organisms differ in reproductive success
C. There are inheritable variations in populations.
D. The desired traits are chosen by a breeder
C. There are inheritable variations in populations.
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Where is the cochlea located?
A. in the inner ear B. in the middle ear C. in the outer ear D. in the vestibular system
In the study of the evolution of FOXP2, evidence supporting the evolution of a family language disorder comes from what important link?
A. The family members were all lacking vocal cords. B. The identification of multiple mutations in multiple genes is responsible for the disorder. C. The identification of a single mutation in a single gene is responsible for the disorder. D. The disorder is common in the family. E. The identification that the same mutation happens in all patients with speech disorders.
Breathing rates are automatically increased
when ___ levels are ___.
a. oxygen...high b. carbon dioxide...high c. oxygen...low d. carbon dioxide...low e. ATP...low
Chromosomes are duplicated during what
stage of the cell cycle? a. M b. D c. G1 d. G2 e. S