As humans organize their lives and adapt to different environments, our abilities to learn, think symbolically, use language, and employ tools and other products
a. a rest on certain features of human biology that make culture, which is not itself biological, possible.
b. prove that only fully developed adults have the capacity for culture; children lack the capacity for culture until they mature.
c. are shared with other animals capable of organized group life—such as baboons, wolves, and even ants.
d. rest on certain features of human biology that make culture itself a biological phenomenon.
e. have made some human groups more cultured than others.