Chapter3 Ecology
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15 terms
Terms | Definitions |
|---|---|
 Ecology | Scientific study of interactions among organisms and between organisms and their environment |
| Biosphere | Part of Earth in which life exists including land, water, and air or atmosphere |
| Species | Group of similar organisms that can breed and produce fertile offspring |
| Population | Group of individuals of the same species that live in the same area |
| Community | Assemblage of different populations that live together in a defines area |
| Ecosystem | collection of all the organisms that live in a particular place, together with their nonliving environment |
| Biome | group of ecosystems that have the same climate and dominant communities |
| Producer | Organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotroph |
| Consumer | Organism that relies on other organisms for its energy and food supply; also called a heterotroph |
| Carnivore | Organism that obtains energy be eating animals |
| Omnivore | Organism that obtains energy by eating both plants and animals |
| Detritivore | Organism that feeds on plant and animal remains and other dead matter |
| Decomposer | Organism that breaks down and obtains energy from dead organic matter |
| Food Chain | Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten |
| Food Web | Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
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