Evidence of Evolution

Front

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

Back

Evolution

Front

Which layer of sedimentary rock is the youngest?

Back

Layer 1

Front

How do fossils provide evidence that evolution has occurred?

Back

Fossils show how life forms present today are different than those from the past.

Front

What are structures with the same parts but different functions that suggest a common ancestry?

Back

Homologous structures

Front

What is the reason that humans, birds, whales, and lizards have similar arm bones?

Back

They have a common ancestor.

Front

What is the term for the process by which organisms better adapted to their environment tend to survive and produce more offspring?

Back

Natural selection

Front

What are remnants of organs or structures that had a function in an early ancestor called?

Back

Vestigial structures

Front

What is the term for the process by which one species evolves into multiple species to adapt to different environments?

Back

Adaptive radiation

Front

What type of evidence do fossils provide regarding extinct species?

Back

Fossils show that some species have gone extinct.

Front

What is the significance of sedimentary rock layers in understanding evolution?

Back

Different sedimentary rock layers provide evidence for how the environment has changed over time.