Evolution Test Review

____________ is when individuals that are better suited for their environment will survive and pass on their traits to their offspring.

• adaption

• natural selection

• change

Biological evolution is the ____________ in the genetic makeup of a species through time.

• change

• lack of change

Elephant herds in Uganda are being targeted for their tusks. This has lead to an increase in tuskless elephants.

• true

• false

Peacocks with healthy, bright, colorful, thick tails tend to attract more peahens, whereas peacocks that have unhealthy tails do not attract as many peahens, and therefore do not have many offspring. This trend has caused most peacocks to have brilliant feathers.

• true

• false

Natural selection is frequently described as survival of the fittest.

• true

• false

Natural selection acts upon genotypes or phenotypes?

• genotypes

• phenotypes

Competition is a factor in natural selection.

• true

• false

Genetic variation is a factor in natural selection.

• true

• false

individuals among a population that are better adapted to their environment leave more offspring?

• true

• false

A structure that is found in two or more groups that are inherited from a common ancestor.

• analogous structures

• homologous structures

• vestigial structures