Evidence of Evolution

Front

What is the term for the changes of species over time?

Back

Evolution

Front

What are the leg bones in a snake an example of?

Back

Vestigial structures

Front

How do fossils in sediment layers provide evidence for evolution?

Back

Fossils in upper layers are more complex compared to those in the lower levels.

Front

What scientific method do scientists use to find common proteins and amino acids to determine how closely related species are?

Back

DNA

Front

Which scientist is known for the theory of natural selection after visiting the Galapagos Islands?

Back

Charles Darwin

Front

What are homologous structures?

Back

Structures in different species that are similar due to shared ancestry.

Front

What are analogous structures?

Back

Structures in different species that serve similar functions but do not share a common ancestry.

Front

What are vestigial structures?

Back

Body parts that have lost their original function through evolution.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a fossil?

Back

The preserved remains or traces of a once-living organism.