Natural Selection State Test Review

Multiple Choice

_______ occurs when 1 organisms kills and eats another for food.

• Symbiosis

• Competition

• Predation

• Collaboration

Multiple Choice

The theory that organisms who have favorable traits will be more likely to survive and reproduce, thus passing down their traits to future offspring

• fitness

• natural selection

• artificial selection

• overproduction

Multiple Choice

The finches on the Galapagos island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for:

• Attracting a mate.

• Gathering food.

• Defending territory.

• Building nests.

Multiple Choice

When a population becomes divided by an event such as a new river forming, ____________ has occurred.

• Differentiation 
• Isolation
• Adaptation
• Separation

Multiple Choice

When the Grand Canyon in Arizona formed, two populations of one squirrel species were separated by the giant canyon. This is an example of _____________.

• Temporal isolation

• Behavioral isolation

• Geographic isolation

Multiple Choice

Variations in a population are caused by:

• Natural Selection
• Selective Breeding
• Artificial Selection
• Random Mutations

Multiple Choice

The structures shown are_________

• homologous
• heterologous
• analogous
• vestigial

Multiple Choice

The hind leg bones in a whale are examples of

• homologous structures
• analogous structures
• fossils
• vestigal structures