Evidence of Evolution

What are the 5 types of evidence which support evolution

Homologous structures, Vestigial structures, Fossil record, DNA, Embryological Development

What is the difference between Homologous structures vs analogous structures

Homologous= similar structures in bodies but different functions

Analogous= different structures in body, but same function

How are Homologous structures Evidence for Evolution

It shows the similar structures through species, supporting Divergent Evolution

How are vestigial structures Evidence for Evolution

they’re a structure we may have once used but now have been reduced in size and function

How is DNA Evidence for Evolution

Species that share a closer evolutionary relationship will have a higher degree of similarity in DNA

How is Embryological Development Evidence for Evolution

When embryos of different species develop similarly it suggests that they may be common ancestors

How do Fossil Records Evidence for Evolution

They are the remains of an organism, which we can use to create a time scale

What are the two models of the speed of evolution

Gradualism, and Punctuated Equilibrium

What is Gradualism

Change in a populations gene pool happens slowly and gradually over a long period of time

What is Punctuated Equilibrium

Species experienced long periods of little or no significant change, punctuated by relatively short periods or rapid and substantial change (occurs when there is a big change in environment)