Evolution

Front

What is extinction?

Back

The disappearance of a species from Earth.

Front

What are homologous structures?

Back

Structures with the same parts that have different functions, suggesting that organisms share a common ancestry.

Front

What is embryology?

Back

The study of the earliest growth stage of development in organisms.

Front

What is natural selection?

Back

The process where survival of the fittest occurs, and favorable adaptations reproduce faster.

Front

What are vestigial structures?

Back

Body parts that have lost their original function through evolution, such as ostrich wings.

Front

What is evolution?

Back

The change in the heritable characteristics of biological populations over successive generations.

Front

What is adaptation?

Back

A trait that helps an organism survive and reproduce in its environment.

Front

What is the significance of fossil evidence in evolution?

Back

Fossils provide evidence of past life forms and how they have changed over time.

Front

What is adaptive radiation?

Back

The process by which organisms diversify rapidly into a wide variety of forms to adapt to different environments.

Front

What is a mutation?

Back

A change in the DNA sequence of an organism that can lead to new traits.