Evidence of Evolution

Front

What are homologous structures?

Back

Structures in different species that have similar parts but different functions, indicating a common ancestry.

Front

What does Darwin's theory of evolution propose?

Back

Species change over time through processes such as natural selection.

Front

Which layer of rock is typically the youngest in a geological formation?

Back

The top layer is usually the youngest.

Front

What inference can be made if modern organisms have many homologous structures?

Back

It suggests that these organisms share a common ancestor.

Front

What is an example of a homologous structure?

Back

The forelimbs of humans, whales, and bats are homologous structures.

Front

What are vestigial structures?

Back

Structures that have lost most or all of their original function through evolution, like the human appendix.

Front

What is adaptive radiation?

Back

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

Front

What is the significance of fossil evidence in evolution?

Back

Fossils provide a historical record of past life forms and their changes over time.

Front

What is natural selection?

Back

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

Front

What is a common misconception about extinct species?

Back

That extinct species are not related to living species; in fact, many are ancestors of current species.