The life history traits favored by selection are most likely to vary with
A) fluctuations in K.
B) the shape of the J curve.
C) the maximum size of a population.
D) population density.
E) population dispersion.
Ans: D) population density.
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An asexual process used by prokaryotes, in which replicated DNA and other cell parts are distributed into two daughter cells, is called
A. daughter cell duplication. B. conjugation. C. meiosis. D. mitosis. E. binary fission
Which of the following is an appropriate scientific hypothesis?
A) Bad people catch more colds than good people. B) Cold viruses should be allowed to reproduce just like anything else. C) It is unethical to go to school when you have a cold. D) People catch colds because of exposure to cold temperature.
Which of the following is NOT a valid difference between traditional and modern forms of biotechnology?
A) Modern biotechnology can isolate and manipulate individual genes. B) Traditional biotechnology was based solely on selective breeding. C) Modern forms of biotechnology are slower than traditional forms of biotechnology. D) Traditional biotechnology can produce cloned animals with new genes.
Large antibodies that agglutinate antigens are
A) IgG. B) IgM. C) IgA. D) IgD. E) IgE.