Natural Selection and Fossils

What is a major cause of extinctions?

• Biological evolution
• Environmental change
• carbonization
• mineralization

How did Charles Darwin study plants and animals?

• By making scientific models
• By experimenting in the lab
• By observing them over time
• By killing and stuffing them

Mutations in genes cause

• Variation
• Competition
• Reproduction

According to Darwin’s theory, what process causes populations to change as their environment changes?

• Natural selection
• Artifical selection
• Selective Breeding

_________ is an adaptation that allows a species to blend in with its environment.

• Camoflauge
• Behavioral
• Mimicry
• Functional

This is the change over time in populations of related organisms.

• Fossil record
• Geologic time scale
• Biological evolution

This is an inherited trait that increases an organism’s chance of surviving and reproducing in its environment.

• Adaptation
• Fossils
• Reproduction

This adaptation is an example of ________.

• mimicry
• camoflauge

Group of organisms capable of interbreeding and producing fertile offspring.

• species
• gene pool
• population
• homologous structure

The disappearance of a species.

• Evolution
• Extinction
• Migration
• Mutation