Natural Selection

What process is being shown in this image?

• Variation
• Natural Selection
• Selective Breeding
• Homeostasis

The fossil record provides evidence that

• Fossils cannot be dated.

• All species were formed during Earth’s formation and have changed little since then.

• The fossilized species have no connection to today’s species.

• Older species gave rise to more-recent species.

According to natural selection, light colored tree trunks would favor

• light colored moths

• dark colored moths

• red colored moths

• red and light colored moths

These moths are all the same species. The differences between their wings is an example of ________________

• Natural Selection

• Variation

• Homeostasis

• Extinction

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution

• Natural Selection

• Extinction

• Artifical Selection

Almost all adaptations started off as?

• selective breeding

• physiological

• structural

• mutation

The graphs below show the changes in crab color at one beach.

Which of the following is most likely to have caused the change in the distribution?

• A new predator arrived that preferred dark-tan crabs.

• A new predator arrived that preferred light-tan crabs.

• A change in beach color made medium-tan crabs the least visible to predators.

• A change in beach color made medium-tan crabs the most visible to predators.

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the trait is an acquired phenotype.

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the trait is an acquired phenotype.