Natural selection acts on
A. heterozygous individuals.
B. the phenotypes of organisms.
C. the genotypes of organisms.
D. DNA.
E. mitochondrial DNA.
B
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In many societies, marital alliances are important for the survival of the entire group, not just the persons being married
a. True b. False Indicate whether the statement is true or false
Political assemblies known as jirgas, where tribal leaders make joint decisions by consensus are found among the:
a. Kpelle b. Kapauku c. Pashtun d. Ju/'hoansi
Of the sites listed below, which one is the Homo erectus site that provides the longest record of habitation?
a. Trinil b. Swartkrans c. Zhoukoudian d. West Turkana e. Laetoli
A reversible physiological adjustment to a stressful environment is called a(n):
A. acclimatory adjustment B. behavioral adjustment C. developmental adjustment D. stressful adjustment