Evolution

Adaptations will evolve in an environment due to ______.

• selective breeding

• use and disuse of traits

• natural selection

• characteristics acquired in a lifetime

Which of the following did Darwin NOT observe on the Galapagos Islands?

• Habitat and food variations for birds

• Birds related to mainland birds

• Birds with different beaks

• Birds the same as mainland birds

Which of the following might point toward common ancestry?

• Many base sequence changes between rhinos and right whales

• similarities in late embryological development

• bone pattern similarities in vertebrates

• wings in bats and butterflies

Mosquitoes born with genes resistance to DDT will thrive in a sprayed area.

• True

• Depends on the color of the background

• Not if concentration is increased

• False

Dog breeders that choose to only use dogs with the most ideal traits are using ____.

• sexual selection

• artificial selection

• natural selection

• random selection

Fitness is ____.

• how healthy an organism is

• how strong an organism is

• how fast an organism is

• how many offspring an organism has

If two species are geographically isolated for a long period of time, they will ____.

• become different species

• both become extinct

• remain the same species

• become more closely related

Which number of amino acid changes in a milk molecule as compared to a sperm whale would point to the most similar organism?

• 2 (porpoise)

• 11 (rhino)

• 3 (hippo)

• 8 (cow)

If birds can easily see striped snails, what will happen to the striped allele frequency in that environment?

• increase

• stay the same

• decrease

• develop more stripes

Which of the following is NOT a source of evidence for evolution?

• Fossil record

• Acquired Characteristic

• Embryo similarities

• DNA Comparison