Natural selection works on the ________ of an individual organism.
a. phenotype
b. genotype
c. chromosomes
d. alleles
a. phenotype
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Which was the first hominin to take advantage of the controlled usage of fire?
A. Homo sapiens B. Australopithecus afarensis C. Homo erectus D. Homo habilis
The 6-7 million-year-old primate skull discovered in northern Chad is
A. Lucy. B. Proconsul. C. Sahelanthropus tchadensis. D. Homo erectus. E. Homo sapiens.
All of the following are reasons that food foragers do NOT engage in warfare EXCEPT:
a. they have no means of financing warfare. b. they do not have large numbers of people. c. they have no way of controlling people. d. they do not control territorial boundaries. e. they do not have as much hostility towards each other.
________ was prominent in Polynesian chiefdoms
A. The market principle B. The redistribution principle C. Generalized reciprocity D. Balanced reciprocity E. Negative reciprocity