Which of the following is an example of natural selection?(1 point)

Responses

a species of corn is genetically modified to produce a natural insecticide, resulting in an increase in crop growth and a decrease in insect population
a species of corn is genetically modified to produce a natural insecticide, resulting in an increase in crop growth and a decrease in insect population

a farmer breeds a certain cow that produces more milk than his other cows to produce more cows that produce a lot of milk.
a farmer breeds a certain cow that produces more milk than his other cows to produce more cows that produce a lot of milk.

an aloe vera plant species possessing a trait for extra thick leaves survives a long drought in a desert, and an aloe vera species that has thinner leaves does not.
an aloe vera plant species possessing a trait for extra thick leaves survives a long drought in a desert, and an aloe vera species that has thinner leaves does not.

scientists develop a variety of rice that matures faster, using genetic engineering techniques.

an aloe vera plant species possessing a trait for extra thick leaves survives a long drought in a desert, and an aloe vera species that has thinner leaves does not.