____ are good habitats where local reproductive success is greater than local mortality
a. Metahabitats
b. Sink habitats
c. Source populations
d. Source habitats
e. K-selected habitats
d
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Which of the following conditions is not known to be a cause of kidney failure?
a. exposure to lead, arsenic, or pesticides b. complications of diabetes c. high blood pressure d. fever from influenza
Which insecticide has been outlawed in the United States but not in Latin America?
a. DDT b. pyrethrum c. inorganic phosphates d. biological insecticides e. sulfur-containing insecticides
The ? chain of adult hemoglobin is composed of 146 amino acids of a known sequence. In comparing the normal ? chain with the ? chain in sickle-cell hemoglobin, what alteration is one likely to find?
A) trinucleotide repeats B) extensive amino acid substitutions C) glutamic acid replacing valine in the first position D) frameshift substitutions E) valine instead of glutamic acid in the sixth position
Which one of the following processes tends to mix gene pools?
A) gene flow B) the bottleneck effect C) founder effect D) continental drift E) adaptive radiation