In his attempt to classify all living things. he contributed one of the earliest and most influential attempts at producing a racial classification system for humans.

The variation in gene frequency from one end of a region to the other end is called a ___________.

Populations of birds and mammals, including humans, living in warmer climates have more melanin and, therefore, ______________ skin, fur, or feathers.

An advantage of light skin is greater absorption of Vitamin __________.

The study of how language is used in social contexts is called __________.

The Galapagos finches provided Darwin with much of the evidence used to suggest that, in a very real sense, nature selects the best adapted varieties in a species to survive and to reproduce.  This process has come to be known as: 

The study of human paleontology and human variation are included in what subfield of anthropology?

Darwin’s research included and built on the earlier work of all of the following scientists EXCEPT:

Which is NOT a characteristic of Old World monkeys?

Which statement about the fossil record is NOT true?