Which of the following is evidence that the
continents are not static?
a. the jigsaw puzzle fit of continents like
South America and Africa
b. fossils occur in identical rock formations on
both sides of the Atlantic Ocean
c. magnetic poles of large rock formations
point in different directions
d. at certain places beneath the ocean, the sea
floor is spreading
e. all of these are evidence that the continents
are not static
E
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True or False: If B = the benefit of a behavior to a recipient, C = the cost of the behavior of the donor, and r = the degree of relatedness between the recipient and donor, then if rB > C, altruism can evolve
A. true B. false
Humans with mutations in the gene encoding AQP1 (aquaporin-1) that cause the absence of AQP1are
characterized by an inability to ____.
a. concentrate urine despite prolonged thirsting d. control sweating b. control edema e. salivate c. make large volumes of dilute urine
Which of the following has been used to measure more precisely the relatedness of primates?
a. hemoglobin b. blood type c. family trees d. convergence e. fossils
Which statement is not true about MHC II?
A) MHC II interacts with the CD4 receptor on T helper cells. B) MHC II primarily displays extracellular antigens which have been phagocytized. C) MHC II is present only on antigen-presenting cells. D) When bound to antigen, MHC II serves a key role in activation of the appropriate T cells. E) MHC II interacts with both the CD4 and CD8 receptors on T helper and T cytotoxic cells.