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| Term | Definition |
|---|---|
| Ecosystem | all the living and nonliving things in an area and their interactions |
| habitat | provides all the living things the organism needs to live |
| biotic factor | living |
| abiotic factor | nonliving |
| population | a group of one species living in an area |
| Community | different populations in an area |
| niche | the role that an organism has in an ecosystem |
| carrying compacity | the number of organisms that can live in a habitat |
| predator | the one who hunts |
| prey | the one who gets hunted |
| producer | makes its own food and energy |
| Consumers | can’t make their own food and get energy from other producers of consumers |
| hebavors | eat plants only |
| carnivores | eat meat |
| omnivores | eat plants and meat |
| scavengers | eat dead things |
| Decomposers | get energy by breaking down wastes and dead organisms |
| food Chain | a series of steps showing how energy moves from biotic factor to another. |
| food web | a diagram of many different food chains |
| Symbiosis | a relationship between two different animals |
| Parasites | live inside or outside another organism taking nutrients from that organism |