Evolution

1st step of natural selection

2nd step of natural selection

3rd step of natural selection

4th step of reproduction

Ship that darwin sailed on

The length of Darwin's voyage

Any inherited characteristic that increases an organism's chance of survival.

Individuals that are better suited to their environment survive and reproduce most successfully.

Structures that have different mature forms but develop from the same embryonic tissues.

Two populations are separated by geographic barriers such as rivers or mountains.

Age of a fossil is determined by comparing its placement with that of fossils in other layers of rock.

Use of half-lives to determine the age of a sample.

A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.

English natural scientist who formulated a theory of evolution by natural selection (1809-1882)