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Ecosystem
| Term | Definition |
|---|---|
| Biotic Factors | a living thing, as an animal or plant, that influences or affects an ecosystem. |
| Abiotic Factors | a nonliving condition or thing, such as climate or habitat, that influences or affects an ecosystem and the organisms in it. |
| Producers | an organism, as a plant, that is able to produce its own food from inorganic substances |
| Consumers | an organism, usually an animal, that feeds on plants or other animals. |
| Decomposers: | an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances. |
| Herbivore: | animals that get their energy by only eating producers or plants. |
| Carnivore: | animals that get their energy by only eating other consumers. |
| Omnivore: | Omnivore: animals that get their energy by eating both producers (plants) and consumers (animals) |
| Predator: | any organism that exists by preying on other organisms. |
| Prey: | an animal hunted or seized for food, especially by a carnivorous animal. |
| Terrestrial Ecosystem: | a land-based community of organisms |
| Aquatic Ecosystem: | an ecosystem in a body of water. |
| Food chains: | the path of food energy from one organism to another in an ecosystem Energy pyramid: a diagram that shows the amount of energy passed on at each level of a food chain |
| Food webs: | overlapping food chains with different pathways for the flow of food energy in an ecosystem |
| Energy pyramid: | a diagram that shows the amount of energy passed on at each level of a food chain |
| Competition: | : the struggle of organisms against each other to get the same resource |
| Natural resources: | materials in the environment that useful to people |
| Population: | all the organisms of the same species that love in the same place at the same time |
| Community: | populations of different kinds of organisms that live in the same place at the same time. |
| Habitat: | the environment where an organisms lives |
| Estuary: | a place where fresh water from a river empties into the ocean and mixes with it |
| Brackish: | slightly salty, as is the mixture of river water and seawater in estuaries. |
| predator | any organisim that excists by preying on other organisim |
| prey | an animal hunted or seized for food especially carnivorous animals |
| niche | the role or job that an organisim that plays in a habitat |
| food chain | the path of energy flow in an ecosystem |
| primary consumer | the first consumer in an food chain |
| secondary consumer | the second consumer in the food chain |
| tertiary consumer | the third consumer in the food chain |
| autotroph | another name for producer |
| Hetertroph | another name for consumer |
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