When a biologist is looking for a suitable organism in which she can study the process of evolution in a laboratory setting, what would be an important consideration?
A) The organism should be large.
B) The organism should have a short generation time.
C) The organism should produce relatively few offspring.
D) The organism should have a complete fossil record of its ancestry.
B
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Based on what the chapter describes about the melting temperature of fatty acids, which of the following would be likely to increase the stability of a lipid bilayer?
A. an increase in unsaturated fatty acids B. an increase in saturated fatty acids C. a decrease in overall tail length D. an increase in unsaturated fatty acids and an increase in saturated fatty acids E. an increase in saturated fatty acids, and a decrease in overall tail length
Which of the following questions is an example of the "comparative/evolutionary" perspective in biological psychology?
A) To what extent can different species see color? B) What environmental experiences in early life are required for vision to develop normally? C) What kind of treatments can correct faulty vision? D) How are the visual areas of the brain organized?
The cell type responsible for contact dermatitis and tissue rejection is:
A. cytotoxic T cells B. Th1 cells C. CD8 cells D. CD4 cells
Low-growing, hardy plants of the ____________________ occur at high latitudes, where there is a layer of ____________________.
Fill in the blank(s) with the appropriate word(s).