H_Evolution review

The theory of evolution is often states as "survival of the fittest". This means that

• those animals best suited to the environment will survive and reproduce, passing on their genes

• only the strongest animals survive

• only those animals that hunt the best survive

• those animals that reproduce the most will survive

Mutations are

• something that makes you look funny

• changes in your body

• changes in your DNA

• something that occurs in the lab

What is genetic drift?

• the idea that genes drift in and out of a pool

• genes in a population can be changed by random events

• genes drift to one extreme in the gene pool

• that animals drift at sea

What type of genetic drift creates a limited population or a small gene pool

• Founder effect

• Bottleneck

• Directional selection

• sexual selection

What type of natural selection eliminates extremes in a population?

• Disruptive selection

• stabilizing selection

• sexual selection

• directional selection

What type of natural selection describes this scenario: moths get darker over time because the trees got darker

• disruptive selection

• stabilizing selection

• sexual selection

• directional selection

Which best describes two different species?

• animals that are completely different in chromosomes and genetics

• animals who may be similar but can no longer reproduce together

• a mule

An inherited characteristic that increases and organism's ability to survive and reproduce in a specific environment is called a(n)

• homologous structure

• vestigial organ

• adaptation

• speciation

When lions prey on a herd of antelope, some antelope are killed and some escape. Which of Darwin's concept of natural selection might be used to describe this situation?

• acquired traits

• reproductive isolation

• survival of the fittest

• descent with modificaiton

Structures that have different mature forms, but develop from the same embryonic tissue are called ________ structures

• vestigial

• homologous

• HOX

• fossilized