Natural Selection

Natural Selection cannot occur without?

• Genetic Variation

• Changing Environments

• Small Populations

• Mutations

If everyone has the exact same genes, would there be an advantage or natural selection occurring?

• YES

• NO

In BIOLOGY which squirrel is the most "fit?"

• The squirrel that has 8 offspring.

• The squirrel that has 16 offspring.

• The squirrel that can lift the most marshmallows.

• The squirrel that can find the most acorns.

Which of these best illustrates natural selection?

• An organism with favorable genetic variation 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 utilize all existing resources and migratory routes.

• The largest organisms receive the only breeding opportunities.

• The dominant genes become more common with each generation.

Which correlation between the moth population and the data is best supported?

• When dark colored moths migrated out of the population tree color changed from mostly dark to mostly light.

• Dark colored moths turned into light colored moths when tree color changed from mostly dark to mostly light.

• When light colored moths outcompeted dark colored moths the tree color changed from mostly light to mostly dark.

• Light colored moths became more commons than dark colored moths when tree color changed from mostly dark to mostly light.

Why did the black peppered moth have a better change of surviving during the industrial revolution?

• The trees were darker because of the soot and they were camouflaged.

• They could find more flowers faster.

• The soot and pollution gave them powers.

• The pollution and soot made the moths sick.

These species of finch have adapted to their environment based on?

• diet

• predation

• shelter availability

• mating preference

The differences in beak shape in the Galapagos finches is a result of?

• random chance events

• specific breeding

• adaptations to different foods

• movement of traits from one population to another

When antibiotics do not kill the resistant bacteria what happens to the next generation of bacteria?

• Even though they are the babies of the resistant bacteria they do not get the gene and are unable to survive.

• Since they are the babies of the resistance bacteria they do get the gene and the population grows and grows.