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Bio CH30
Biology CH30 Populations and Communities
Term | Definition |
---|---|
commensalism | the relationship in which two organisms live together, and one benefits while the other gets no benefit and is not harmed |
community | all of the living things in an area that depend upon each other |
emigration | the movement of animals out of an area |
energy pyramid | a diagram that shows energy loss in the food chain |
food chain | a pathway of energy and materials through a community |
food web | food chains connected in a community |
habitat | the place where a plant or animal lives |
immigration | the movement of animals into a population |
limiting factor | any condition that keeps the size of a population from increasing |
niche | the job of the organism in the community |
parasitism | a relationship between two organisms in which one is helped and the other is harmed |
population | a group of living things of the same species that live in an area |
predation | the predator-prey relationship |
predator | an animal that hunts, kills, and eats another animal |
prey | an animal that the predator kills and eats |
primary consumer | animals that eat only plants |
secondary consumer | animals that eat other animals |