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7th grade Chapter 4
Ecology and Energy
| Term | Definition |
|---|---|
| food chain | a series of events in which one organism eats another and obtains energy |
| energy pyramid | a diagram that shows the amount of energy that moves from one feeding level to another in a food web |
| ecology | study of how organisms interact with each other and their environment |
| ecosystem | the community of organisms that live in a particular area, along with their nonliving environment |
| biotic factors | the parts of a habitat that are living or once were living |
| community | made up of all of the populations living in a particular area |
| carnivore | consumers that eats only animals |
| omnivore | consumers that eat both plants and animals |
| abiotic factors | the nonliving parts of an organism's habitat |
| decomposer | an organism that breaks down wastes and dead organisms |
| species | a group of organisms that can mate with each other and produce offspring that can also mate and reproduce. |
| scavenger | a carnivore that feeds on the bodies of dead organisms |
| population | made up of all the members of one species living in a particular area |
| organism | a living thing |
| food web | a system of overlapping food chains |
| habitat | an environment that provides the things a specific organism needs to live, grow, and reproduce |
| herbivore | a consumer that eats only plants |
Created by:
KimRoush