Behavior that involves giving up something of relatively low value in exchange for getting something of great value in the future is best described as:
a) prepared learning.
b) kin selection.
c) reciprocal altruism.
d) inclusive fitness.
e) direct fitness.
Ans: c) reciprocal altruism.
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The type of DNA repair that corrects errors due to oxidative damage by replacing one to five nucleotides is
A) mismatch repair. B) base excision repair. C) roto-rooter repair. D) photoreactivation.
The concept of an ecosystem differs from that
of a community in that, unlike the community, the ecosystem includes the a. producers. b. decomposers. c. physical environmental factors. d. animals as well as the plants. e. parasites.
Assume that you have found two squirrels that look very much alike. One was found on the north rim of the Grand Canyon and the other on the south rim. How could you prove that they are members of the same species?
a. Compare the overall appearance of the two species. b. You would have to determine if they can interbreed and produce viable offspring. c. Determine the time of year each breeds. d. Consider the number of differences in appearance of the two species. e. Determine the geographic location of the two squirrels.
True of False: Escherichia coli is positive for motility.
What will be an ideal response?