Evolution Review

Front

What is the cause of the biodiversity found on the planet today?

Back

Populations or organisms adapting to different environments.

Front

How would a warming climate affect the species in an ecosystem?

Back

Individuals best able to survive the heat would become more numerous.

Front

What determines whether a mutation in a bird will lead to a new species?

Back

The mutation must provide some type of advantage for the bird.

Front

What factor would most likely prevent two populations of field mice from breeding?

Back

Active time of day.

Front

What does the similarity of structures in different organisms indicate?

Back

They have a common ancestor.

Front

Define evolution.

Back

The process by which populations of organisms change over generations through variations and natural selection.

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 mutation?

Back

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

Front

What is adaptation?

Back

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

Front

What is speciation?

Back

The formation of new and distinct species in the course of evolution.