ecosystem - community of organisms living together and interacting with their environment, biotic factors - living components of an ecosystem, abiotic factors - non-living components of an ecosystem, population - all the members of one species that live in an ecosystem, producers - biotic factors that use the sun's energy to make food, consumers - biotic factors that obtain energy by eating producers or other consumers, decomposers - biotic factors that obtain energy from waste and dead material and recycle nutrients back into the ecosystem, community - all the species that live in an ecosystem, symbiotic relationship - an interaction between two organisms in an ecosystem that benefits at least one of the organisms, food chain - ordered direction of the flow of energy and matter in an ecosystem, herbivore - an animal that eats plants (producers), predator - a consumer that eats other animals, prey - an animal that is hunted or killed by another animal for food, parasitism - a symbiotic relationship that benefits one organism and harms the other, commensalism - a symbiotic relationship that benefits one organism and has no effect on the other, mutualism - a symbiotic relationship that benefits both organisms, parasites - an organism that lives in or on a host organism and benefits an the host's expense, hosts - an organism that is infested by a parasite,

Ecosystems - General Terms

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