In studies of primate cognition and tool use, researchers have taught chimpanzees to
crack open nuts with stones. Later in life, these chimpanzees have taught other young
chimpanzees and offspring the same skill. This could be considered
a. social transmission of learned behavior.
b. a type of “culture” that is learned and passed between individuals.
c. evidence of the cognitive capabilities of primates.
d. all of the above.
A genetic study conducted over two generations found that the frequency of genotypes
in the first generation were AA: 0.36, Aa: 0.48, aa: 0.16. In the second generation,
genotype frequencies remained the same. According to the Hardy-Weinberg
equilibrium, we can assume
a. negative assortative mating has maintained gene frequencies.
b. mutations have likely occurred resulting in the same frequency.
c. mating in this population is random.
d. the population is small and we cannot detect change.