Evolution & Natural Selection Review

Front

Adapt

Back

To change or modify in response to new environmental conditions

Front

Ancestor

Back

A hypothetical form from which an organism has developed or descended

Front

What is evolution?

Back

The process of changing the genetic make-up of a population over generations

Front

What is extinction?

Back

The permanent loss of a population or species

Front

What is a fossil?

Back

Evidence that an organism once existed in an area

Front

What are homologous structures?

Back

Structures similar in position, structure, and evolutionary origin but not necessarily in function

Front

Mass extinction

Back

A catastrophic event leading to the extinction of the majority of Earth's species

Front

What is the theory that explains how organisms best adapted to their environment survive and reproduce?

Back

Natural Selection

Front

What is a group of organisms that share similar characteristics and can mate with each other to produce offspring called?

Back

Species

Front

What is the term for selective breeding of plants and animals by humans?

Back

Artificial Selection