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Ecosystems and

Interactions of Organisms with their Environment

abiotic non-living things in an environment
biotic living organisms
ecosystem a system formed by the interaction of a community of organisms with their environment
environment the air, water, minerals, organisms, and all other external factors surrounding and affecting a given organism at any time
habitat the natural environment of an organism; place that is natural for the life and growth of an organism
population all the individuals of one species in a given area
precipitation rain, snow, sleet, dew, etc, formed by condensation of water vapour in the atmosphere
grassland an area, as a prairie, in which the natural vegetation consists largely of perennial grasses, characteristic of subhumid and semiarid climates
deciduous forest a forest with trees and shrubs that shed their leaves annually
biome a complex biotic community characterized by distinctive plant and animal species and maintained under the climatic conditions of the region
taiga the coniferous evergreen forests of subarctic lands, covering vast areas of northern North America and Eurasia
food chain a series of organisms interrelated in their feeding habits, the smallest being fed upon by a larger one, which in turn feeds a still larger one
food web a series of organisms related by predator-prey and consumer-resource interactions; the entirety of interrelated food chains in an ecological community
predator any organism that exists by preying upon other organisms.
prey an animal hunted or seized for food, especially by a carnivorous animal
carnivore an animal that eats flesh.
herbivore an animal that feeds on grass and other plants
omnivore someone or something that eats both animal and plant
scavenger an animal or other organism that feeds on dead organic matter
decomposer an organism that breaks down the cells of dead plants and animals into simpler substances
producer something that makes something else, usually food
Created by: MrsStevenson