Natural Selection Test_25.26

Artificial selection

A natural selection

An adaptation

A reproduction

The sun

The preferences of individual organisms

Changes in the environment

A population with no genetic variation

A vestigial structure

A homologous structure

An allele

An adaptation

True

False

Genetic variation

Human interaction with the environment

A cell nucleus

Sexual reproduction

The struggle for survival

The overproduction of a species

A mutation

Competition

Survival of an entire species

Survival of organisms with the most advantageous traits

Survival of non-native, invasive species

Survival of the weakest organisms

Species A

Species B

Species C

Species D

They have different swimming adaptations.

They are trying to regulate their internal salinity levels.

They have different feeding adaptations due to competition for food.

They have different respiration adaptations in order to breathe underwater.

The bacteria that cause the disease avoid the antibiotics.

The bacteria change their genes to avoid antibiotics.

Advantageous mutations in the population of bacteria are passed to offspring.

Bacteria can change their environment and pass those environmental changes to offspring.

Parents can pass it to their offspring through their genes.

Each beetle chooses what color it wants to be based on the environment it lives in.

Different beetles are different colors.

The green beetles are always more likely to survive than the brown beetles.

The brown beetles will survive and reproduce more because the birds do not like how they taste.

The brown and green beetles will survive and reproduce in equal numbers because parents will continue to pass on both traits to their offspring.

Individual green beetles will change their color to brown to camouflage better and survive.

The brown beetles will survive and reproduce more because they have an advantageous trait that allows them to camouflage from predators.

Because the species has competition for limited resources.

Because the species experiences new advantageous mutations.

Because the population of predators of the species decreased.

Because the species stopped reproducing completely.