Chapter 22 Concept Map 4/4

Observational Evidence for Evolution

Embryology

Biogeographic Patterns

Fossils

Vestigial Structures

Homologies

Anatomical

Molecular

Common Ancestor

States that all species evolved from a:

Homologous Structures

Analogous Structures

Show/represent descent from a:

Differ in function

Example:

Have the same function

Convergent Evolution

Different species develop a similar structure because the same environmental pressures required it

Show/Support:

States That:

Cell Processes

Molecules

Common:

Similar:

Geographic patterns where life is found presently and historically

Are:

"Evolutionary Baggage"

A.K.A:

Marginal or no purpose

Back "legs" on whales

Have/Serve:

Example: