AP Unit 7

Natural selection results in change in a population's _____________ traits over time.

• inherited

• acquired

Brown mice survive and reproduce in their desert environment better than white mice because owls can see and eat the white mice more easily. In this situation, what part of the environment is doing the selecting?

• predator

• soil composition

• mouse fur color

• sexual preferences

Over generations of time apart on different islands with different food sources, the separated populations of Galapagos finches accumulated genetic differences until each group had different beaks. This is an example of _____.

• natural selection

• genetic drift

• adaptation

• speciation

Individuals undergo evolution.

• True

• False

A phenotype that improves an organism’s chance of survival in their environment is considered a(n) ____________.

• natural selection

• adaption

• speciation

What is speciation?

• combining of two species to form one with different traits

• Intentional breeding designed to maintain a desired trait

• timing of mating that prevents normal sexual selection

• A population splits and accumulates different genes in the new groups

Which of the following is NOT an example of natural selection?

• People selectively breeding hamsters for size.

• Insect populations developing resistance to certain pesticides.

• Bacteria becoming resistant to antibiotics.

• Male birds of certain species inheriting colorful feathers that are more attractive to females.

Genetic drift is change in the allele frequency of a population due to...

• random chance
• natural selection
• non-random mating (sexual selection)
• artificial selection

Eyes that can see in the dark is a(an) _______ inherited by nocturnal animals.

• adaptation

• acquired trait

• learned ability

Evolution, gravity, and plate tectonics are all examples of scientific...

• hypotheses

• theories

• laws