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22 Cards in this Set

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Species

A group of similar organisms that can mate and produce fertile offspring.

Population

All the members of a species that live in a particular area.

Community

All the different that live together in a particular area.

Ecosystem

All the living and nonliving things that interact with each other in their environment.

Biome

A group of ecosystems with similar climates and organisms.

Ecology

the study of how living things interact with each other and the environment.

Habitat

The place where an organism lives and provides the things it needs to survive.

Biotic factors

All the living parts of an ecosystem.

Abiotic factors

All the nonliving parts of an ecosystem.

Natural selection

Process by which organisms that are better adapted to their environment and are more likely to survive and reproduce.

Adaptation

The behaviors and physical characteristics of a species that allow them to live successfully in their environment.

Niche

An organisms particular role in an ecosystem or how it makes its living.

Competition

The struggle between organisms for the limited resources in a habitat.

Predatation

An interaction in which one organism kills and eats the other.

Predator

The organism that does the killing In predatation.

Prey

The organism that is killed in predatation.

Symbiosis

A close relationship between two species that benefits at least one of the species.

Mutualism

A relationship between two species in which both species benefit.

Commensalism

A relationship between two species in which one species benefits and the other is neither helped nor harmed.

Parasitism

A close relationship in which one organism lives on or in another organism and harms it.

Host

The organism the parasite lives on or in.

Parasite

The organism that benefits from parasitism.