Evolution Review

An organism evolves over it's lifetime

• True

• False

Natural selection acts directly on the​ (a)   and acts indirectly on the ​​ (b)  

• phenotype
• genotype

Evolution occurs at the​ (a)   level and not at the ​ (b)   level.

• population
• individual

Match the following vocabulary to its definition

• structures that had a purpose in an ancestor, but no longer serves that purpose

• evolution

• when an environment puts pressures on a species, the species must adapt to survive and reproduce

• homologous structures

• descent with modification

• vestigial structures

• intentional breeding for a desired outcome

• artificial selection

• anatomical structures that are identical among species, without similar function

• natural selection

a common ancestor and all of its descendants make up a ?

• clade

• domain

• kingdom

• order

The combined genetic information of all members of a particular population form a?

• gene pool

• niche

• phenotype

• population

This mode of selection in which individuals of average size have greater fitness than small or large individuals is called?

• disruptive selection

• stabilizing selection

• directional selection

• neutral selection

A random change in a small population's allele frequency is known as?

• a gene pool

• genetic drift

• variation

• fitness

The situation in which allele frequencies change in a result of the migration of a small subgroup of a population is known as

• the bottle neck effect

• the founder effect

• genetic equilibrium

• sexual selection

Temporal isolation occurs when two different populations?

• develop different mating behaviors

• become geographically separated

• reproduce at different times

• interbreed