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6gr Ecology
| Term | Definition |
|---|---|
| food chain | series of organisms each dependent on the next as a source of food |
| food web | interconnecting and overlapping food chains showing feeding relationships within a community |
| symbiotic relationships | interactions between organisms |
| predator-prey | predator eats prey; one organism eats another organsim |
| competition | organisms fighting for the same resources |
| mutualism | interaction between 2 organisms where both organisms benefit from each other |
| commensalism | interaction between 2 organisms where 1 organisms benefits but the other is neither harmed nor benefited |
| parasite-host | interaction between 2 organisms where 1 organism benefits and the other is harmed |
| resources | living things need certain things to survive & for the survival of the species--food/ energy, shelter, water, protection, a mate |
| abiotic factors | anything not made up of cells; temperature, air, water, sunlight, soil, etc |
| biotic factors | anything made up of cells |
| producers | use photosynthesis to transform sunlight (radiant, electromagnetic, light) energy into chemical energy |
| consumers | eat producers and/or other consumers (ie: animals) |
| decomposers | breakdown/ decay dead matter into nutrients and elements that can be returned into the environment (ie: bacteria, fungi) |
| biodiversity | high variety of species |
| limited resources | factors that are more scarce increase the competition |
| invasive species | organisms that are not originally part of the environment |
| native species | organisms that are originally part of the environment |
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