A process in which individuals with certain traits tend to survive and reproduce better than other individuals because of those traits.

Ability of an organism to survive and reproduce in its environment

A change in a gene that can lead to a new trait

An organism's particular role in an ecosystem, or how it makes its living.

A trait that helps an organism survive and reproduce

A feature of an organism

the struggle between individuals or different populations for a limited resource

the natural home or environment of an animal, plant, or other organism.

The action of one organism trying to copy the look or actions of another

A group of individuals that belong to the same species and live in the same area

Any difference between individuals of the same species.

Related to the structure or physical body of an organism

Relating to the behavior or action of an organism

trying to hide or blend in with the surroundings

An animal that hunts other animals for food

An organism that is killed and eaten by another organism

An environmental factor that prevents a population from increasing