Evolution and Natural Selection Review

Front

What is competition in ecology?

Back

An ecological relationship in which two or more organisms depend on the same limited resource.

Front

What is an example of a vestigial structure in humans?

Back

Wisdom Teeth.

Front

What is gene flow?

Back

The movement of genes from one population to another.

Front

What are fossils?

Back

The preserved remains or physical evidence of an organism that lived in the past.

Front

Why do humans, birds, whales, and lizards have similar arm bones?

Back

They have a common ancestor.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is adaptation?

Back

A trait that helps an organism survive and reproduce in its environment.

Front

What is evolution?

Back

The change in the heritable characteristics of biological populations over successive generations.

Front

What is a mutation?

Back

A change in the DNA sequence of an organism's genome.

Front

What is a common ancestor?

Back

An ancestral species from which two or more species have evolved.