Introduction to Evolution

The differences in physical traits among a species, such as different colorations, are called

• genes

• variations

• adaptations

• alleles

What process is being shown in this image?

• Variation
• Natural Selection
• Selective Breeding
• Homeostasis

Evolution is a

• law
• theory
• hypothesis
• conclusion

The process of biological change in populations over time that makes descendants genetically different from their ancestors

• genotype

• crossing over

• evolution

• adaptation

A trait that allows an organism to better survive in its environment.

• evolution

• adaptation

• selection

• genotypes

A group of organisms of the same species which live in a shared space and reproduce with each other.

• population

• species

• organism

• community

A random change in a gene or chromosome affecting the gene pool of a population is what?

• mutation

• error

• evolution

• natural selection

All the genes available in a population

• alleles.

• genotypes.

• gene pool.

• gene flow.

Sometimes referred to as "survival of the fittest," this process allows those traits which are most favorable to be passed on to the next generation and those which are not to be eliminated.

• genetic drift
• gene flow
• natural selection
• mutation

The introduction of new genes into a population due to new individuals moving into an area is known as what?

• genetic drift
• gene flow
• gene pool
• mutation