Evidence of Evolution Lesson

The more closely related the organisms are, the easier it is to tell them apart at an early embryonic stage.

The more closely related the organisms are, the harder it is to tell them apart at an earlier stage.

All organisms are equally related, and can be told apart from an early stage.

None of the organisms are related, and can be told apart at all stages.

It shows that embryos who develop similarly share a common ancestor

It shows that embryos who develop similarly are not related to one another

It shows that organisms have the ability to evolve, or change, over time

Natural Selection

Phylogenetics

Genetic Variation

Paleontology

Are the remains or evidence of once-living organisms

Is the change over time in populations of related organisms

Is made up of all the fossils ever discovered on Earth

Occurs when the last individual organism of a species dies

Younger & more complex

Older & simpler

Younger & simpler

Older & more complex

embryology

biochemistry

environmental science

biogeography

Homologous structures

Analogous structures

Vestigial structures

Fossil structures

Homologous structure

Analogous structure

Vestigial structure

Fossil structure

Analogous

Homologous

Vestigial

Fossil

The organisms probably use there forelimbs for the same thing.

The organisms evolved from a common ancestor.

The organisms have the same DNA.

All vertebrate species have identical forelimbs.

Closely related they are.

Distantly related they are.

It doesn't prove anything.

They look alike.

paleontology

biogeography

biochemistry

embryology