Unit 7 quiz 1

The main conclusion Darwin reached after his return from the Galapagos Islands was that

• Species change over time

• The animals on the islands were the same as those on the mainland

• Populations do not change over time

Two different species may have similar features because of

• descent from a common ancestor.

• fossil record

• genetic drift

The origin of numerous species of Galápagos finches from one original species is an example of

• gene cascades.

• genetic drift and emigration.

• adaptation and speciation.

• mass extinctions.

Individual organisms evolve, not populations.

• True

• False

Who was the naturalist that traveled the world to study plants and animals?

• Albert Einstein
• Charles Darwin
• Charles Barkley
• Isaac Newton

the hind leg bones in a whale are examples of

• homologous structures
• analogous structures
• fossils
• vestigals

Which layer is the oldest?

• 1
• 2
• 3
• 4

Which is artificial selection?

• Breeding dogs for specific traits.

• Coyote species diverging from the wolves.

An animal has several inherited characteristics that makes it much fitter than its rivals. According to Natural Selection it should:

• Help the others that are less fortunate

• Survive longer, have more and better babies.

• Be equals with its kin

Remains of ancient organisms are called

• Extinctions
• Fossils
• Mutations
• Variations