Generally, the greater the sexual dimorphism, the __________ the social dominance of males over females.

A common primate trait is __________.

Anthropologist Donald Johanson found 40 percent of the skeleton of a female hominid at Hadar; he named it __________ after the Beatles song.

Humans evolved from earlier __________ which are now extinct.

The prosimians resemble other mammals _________ the anthropoid primates do.

The main process that increases the frequency of adaptive traits through time is called __________.

Which of the following statements is not true of gibbons and siamangs?

Compared with other primates, the human dependency period is much ________.

Racism is the belief that __________.

Darwin’s acceptance of the scientific understanding of evolution was greatly influenced by reading the earlier work of: