Stabilizing natural selection
A) preserves current gene frequencies and phenotypic norms
B) contributes to periods of evolutionary stasis in species
C) operates during periods of environmental stability
D) is not a permanent condition for species
E) all of the above
E
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According to Shandy in "Nuer Refugees in America," the UN classifies refugees as people who have
a. left their home country but are willing to return. b. left their home country to seek economic prosperity elsewhere. c. left their home country because they fear persecution based on race, religion, nationality, political opinion, or membership in a social group. d. left their homes but are still in their home country.
Who was the first woman elected to the U.S. House of Representatives?
What will be an ideal response?
Which of these is an example of traditional resource management?
a. Intercropping of corn and squash in parts of Mexico b. The planting of an export crop such as coffee for extra cash in El Salvador c. The planting of fruit trees in fallowed fields in parts of Mexico d. Using birth control among peoples of LDCs
Who is associated with the principle of original horizontality?
a. Steno b. Lyell c. Smith d. Hutton