Natural Selection Practice

available niches

existing predators

chromosome number

available food resources

natural processes that produce genetic diversity

natural processes that always affect the phenotype

unnatural processes that always affect the phenotype

unnatural processes that are harmful to genetic diversity

An organism with favorable genetic variations will tend to survive and breed successfully. 

A population monopolizes all of the resources in its habitat, forcing other species to migrate.

A community whose members work together utilizing all existing resources and migratory routes.

The largest organisms in a species receive the only breeding opportunities.

It will accelerate the appearance of new traits.

It will promote the survival of chimpanzees with beneficial traits.

It will increase the number of alleles for specific traits.

It will reduce genetic diversity.

genetic drift

mutation rate

natural selection

genetic variation

Organisms produce more offspring than can survive.

Disease and natural disaster will limit population growth

Species today descended with modifications from ancestral species.

Organisms with advantages will survive and reproduce.

Environments with more organisms tend to have more successful species.

Species with greater genetic diversity adapt more easily to changing environments.

Changing environments prevent species from adapting and surviving.

Species in a stable environment are more resistant to a changing environment.