Evolution and Natural Selection

When humans select which organisms are allowed to breed based on their traits

• natural selection

• artificial selection

• evolution

• adaptation

The only way new genes can be created is by

Organisms with the greatest fitness:

• live longest

• have the best qualities

• have the best offspring

• pass on their traits

A human's appendix is an example of a ____ structure

• vestigial

• analogous

• homologous

• imaginary

A human arm, whale fin, and bird's wing are examples of

• analogous structures

• homologous structures

• vestigial structures

• artificial selection

The movement of alleles into a new population is called

• migration

• founder effect

• gene flow

• bottleneck effect

The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

Organisms with the most beneficial traits will survive.  This is commonly known as

• theory of evolution.
• variations.
• survival of the fittest.
• ecosystems.

What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce