Evolution

Front

What are homologous structures?

Back

Structures in different species that share a common ancestry but have different functions.

Front

What is the advantage of having different shaped beaks in birds?

Back

Different shaped beaks allow birds to eat the food readily available in their environment.

Front

What does it mean if a fossil of an extinct dinosaur shows similarities to a bird?

Back

It suggests that the extinct dinosaur and modern bird share a common ancestor.

Front

What is artificial selection?

Back

The process where humans breed organisms together based on traits they prefer.

Front

What are vestigial structures?

Back

Structures that have lost most or all of their original function through evolution.

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 adaptive radiation?

Back

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

Front

What are analogous structures?

Back

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

Front

What is extinction?

Back

The end of an organism or a group of organisms, typically due to environmental changes or loss of habitat.

Front

What is a common ancestor?

Back

An ancestral species from which two or more species have evolved.