New alleles arise by
a. mutation.
b. migration.
c. genetic drift.
d. random mating.
e. independent assortment.
Answer: a
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Which of the following is NOT classified as a type of connective tissue?
a. bone b. cartilage c. glands d. adipose e. blood
The primary functions of the spinal cord are
A. local control and decision-making for local anatomy. B. to serve as a center for reflex actions and to facilitate communication between the brain and spinal nerves. C. to coordinate speech, taste, smell, vision, and hearing. D. to integrate intelligence with primal instinct and to coordinate memory. E. controlling muscle activity and maintaining balance.
Which of the following is a reason that conservation biologists have begun to use phylogenetic trees to assist in determining where to direct the limited resources that support conservation efforts?
A. Conservation biologists do not use phylogenetic trees to make decisions about limited resource use, the diagrams are used strictly in the study of evolution. B. Phylogenetic trees can demonstrate species with few close relatives that are more likely to possess unique features and adaptations not shared by other species. C. Distinct species are valuable because they represent a part of life that, if lost, cannot be recovered. D. Species with numerous, closely related groups are more likely to survive extinction due to hybridization with those closely related groups.
The ____secretes bile
a. liver b. gallbladder c. pancreas d. small intestine e. stomach