A __________ is a group of people who occupy a particular territory and speak a common language.

Children learn spoken language at __________.

Animal systems, such as sound or odor, represent __________ but not __________.

Most archaeologists believe that the __________ was one of the earliest centers of plant and animal domestication.

Often, in the aftermath of violent events such as depopulation, relocation, enslavement, and genocide by dominant powers, deprived peoples have created new cultures in a process called __________.

All societies divide labor by what two factors?

What is racism?

What form of horticulture involves working the land for a short time, then leaving it idle for a few years?

Any system of communication consists of publicly accepted __________ by which individuals try to share private experiences.

Why is it so difficult to pinpoint the emergence of the earliest languages?