Research suggests that differences in tool use among chimpanzee populations is the result of __________
a. genetic differences
b. cultural traditions
c. environmental differences
d. intelligence
Answer b
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Australopithecus afarensis had a cranial capacity just over 400 cubic centimeters
Indicate whether the statement is true or false.
Which of the following statements about the HbS allele is NOT true?
A. It is found in higher gene frequencies in regions where malaria is endemic. B. It causes sickle-cell anemia in homozygous individuals. C. In areas where malaria has been reduced through drainage and insecticides, its frequency declines. D. Heterozygous individuals have an increased immunity to malaria. E. Homozygous individuals usually develop fatal cases of dysentery.
Continual expansion is one of the characteristic features of industrial economic systems.
Answer the following statement true (T) or false (F)
Ecological factors influencing primate social behavior include which of the following?
a. The distribution of food and water, predators, and nutritional value of foods b. Levels of testosterone among predators c. Ancestry of primates d. Gene codes for behaviors e. Learning