Evidence for Evolution

Front

What are analogous structures?

Back

Structures in different species that perform similar functions but have different evolutionary origins.

Front

What is a key characteristic of analogous structures?

Back

They do not share a common embryonic development.

Front

What are homologous structures?

Back

Structures in different species that share a common ancestry but may serve different functions.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function through the course of evolution.

Front

Can you give an example of a vestigial structure in humans?

Back

The appendix, tailbone, and wisdom teeth.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures arise from a common ancestor, while analogous structures do not.

Front

What is the function of the fin in whales?

Back

The fin is adapted for swimming.

Front

What is the function of the wings in bats?

Back

The wings are adapted for flying.

Front

What does it mean if a structure is considered vestigial?

Back

It means the structure is a remnant of an evolutionary past and no longer serves its original purpose.

Front

What is the significance of studying analogous structures in evolution?

Back

They help illustrate how different species can adapt to similar environments.