Evolution Study Guide!

According to natural selection, organisms more suited to their environment are better able to

• Sleep

• Survive

• Perish

• Migrate

Natural selection

• explains why population produce more offspring than the environment can support.

• leads to variation within a population

• allows a weaker species to reproduce more frequently.

• increases individual's chance of reproducing.

Which of the following best describes the process of evolution by natural selection?

• Organisms intentionally adapt to their environment.

• Individuals with beneficial traits are more likely to reproduce.

• All members of a species evolve together at the same rate.

• Evolution occurs solely by chance mutations.

How does natural selection contribute to the adaptation of species?

• By ensuring only the strongest individuals survive.

• By favoring traits that improve survival and reproduction in a particular environment.

• By maintaining genetic uniformity in a population.

• By preventing mutations from occurring.

Which of the following describes what is meant by Natural Selection?

• An organism will survive no matter what its adaptations may be

• An organism with adaptations that do not allow it to reproduce as effectively as others will survive.

• An organism with adaptations that allow it to obtain resources and reproduce more effectively than others will survive.

• No organisms will survive.

Which best describes an adaptation?

• A trait that helps an organism to survive in its environment.
• A trait that the organism can change when he wants.
• A trait that does not help the organism to survive in its environment.
• The place where an organism lives.

The diagram shows the beaks of four Finches that developed over time from one parent species. Explain why the beak shape of each species of Finch developed differently. 

• They adapted to look better, so they could reproduce and pass on traits.
• Their beaks adapted to help them hide from predators.
• They adapted to better eat the different foods available to them in the region they live in.
• They adapted so they could smell better.

Example: How does the lizard benefit from being blended into its sandy habitat?

• It makes the lizard harder to see.

• It makes the lizard harder to hear.

• It makes the lizard harder to touch.

• It makes the lizard harder to smell.

Organisms with differences/variations that are helpful will ______________________

• live longer
• become extinct
• show no change

What is a triat?

• an organism

• the personality of an organism

• the mentality of an organism

• a characteristic of an organism