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Ecosystems and
Interactions of Organisms with their Environment
| Question | Answer |
|---|---|
| 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
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