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8th Grade Science

community a group of various species that live in the same habitat and interact with each other
decomposer an organism that feeds by breaking down organic matter from dead organisms; examples include bacteria and fungi
ecosystem a community of organisms and their abiotic environment
environment in physics, the combination of conditions and influences that determine the behavior of a system
habitat the place where an organism usually lives
omnivore an organism that eats both plants and animals
pioneer species a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established
population a group of organisms of the same species that live in a specific geographical area and interbreed
predator an organism that eats all or part of another organism
prey an organism that is killed and eaten by another organism
primary consumer An animal that eats grass and other green plants in a food chain; an herbivore.
producer an organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem
scavenger an animal that feeds on the bodies of dead animals
species a group of organisms that are closely related and can mate to produce fertile offspring; also the level of classification below genus and above subspecies
succession the replacement of one type of community by another at a single location over a period of time
secondary consumer An animal that feeds on smaller plant-eating animals in a food chain.
Created by: troachie