Evidence of Evolution Review

Fossils show how the sizes of certain animals has changed drastically over millions of years

Fossils show that some species have gone extinct

Fossils show how life forms present today are different than those from the past

Different sedimentary rock layers provide evidence for how the environment has changed over time

vestigial structures

analogous structures

homologous structures

fossil structures

The organisms share a common ancestry.

The organisms belong to the same genus.

The organisms are native to the same geographic areas.

The organisms will grow into anatomically similar adults.

The function of these bones is the same in all animals

They live in similar environments

They have a common ancestor

All organisms resemble humans

fossils

DNA

homologous structures

embryology

structures that perform a similar function but are not similar in origin

remnants of once-important structures that have slowly lost all or most of their function

features found in different organisms that share structural similarities but may have very different functions

preserved remains of an organism

1

2

3

4

Species I

Species II

Species III

Species IV