Evidence of Evolution

Front

What is the youngest layer in a geological formation?

Back

Layer 1 is the youngest.

Front

What do similarities in bone arrangements suggest about organisms?

Back

These organisms share a common ancestor.

Front

What is the term for a change in inherited characteristics of an organism over time?

Back

Evolution.

Front

What is a homologous structure?

Back

A structure that is similar in different species due to shared ancestry.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function in a species.

Front

Which of the following is not evidence for evolution?

Back

All of these are evidence for evolution.

Front

What is the fossil record?

Back

A historical sequence of life forms preserved in sedimentary rock.

Front

What does the term 'common ancestor' refer to?

Back

An ancestral species from which multiple species have evolved.

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 the significance of homologous structures in evolution?

Back

They provide evidence of common ancestry among different species.