Evolution

Front

Which process is the only source of new alleles in a population?

Back

Mutation

Front

Which process is a change in an organism over a long period of time in response to changing environmental conditions?

Back

Evolution

Front

Evolution can be defined as...

Back

changes in the allele frequency of a population over time

Front

Two organisms that are closely related would have

Back

very similar DNA sequence

Front

A farmer's use of the best livestock for breeding is an example of

Back

artificial selection

Front

Why don't all living things become fossils?

Back

because environmental conditions have to be just right to prevent decay

Front

What do phylogenic trees do?

Back

Help you visualize how species are related.

Front

Select the best answer based on the image

Back

Gene flow

Front

A few deer wander out of their native woods into a completely new park where no deer had ever been before. They go on to create an entirely new population.

Back

Founder effect

Front

Ten years ago, in a small population of ducks, two sizes of eyes were observed, large and small. Three ducks have large eyes and 7 have small. 2 of the large-eyed ducks are randomly hit by cars and killed. Today, no large-eyed ducks are present in the population.

Back

bottleneck