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Bio CH30

Biology CH30 Populations and Communities

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