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Chapter 2
Ecosystems & Biomes
| Question | Answer |
|---|---|
| producer | an organism that makes its own food |
| consumer | an organism that obtains energy by feeding on other organisms |
| herbivore | consumers that eat only plants |
| carnivore | consumers that eat only animals |
| omnivore | consumers that eat both plants and animals |
| scavenger | a carnivore that feeds on the dead bodies of organisms |
| decomposers | they break down waste and dead organisms and return the raw materials to the ecosystem |
| food chain | a series of events in which one organism eats another and obtains energy |
| food web | it consists of many overlapping food chains in an ecosystem |
| energy pyramid | shows the amount of of energy that moves from one feeding level to another in a food web |
| water cycle | the continuous process by which water moves from the earths surface to the atmosphere and back |
| evaporation | the process by which molecules of liquid water absorb energy and change to gas |
| condensation | the process by which a gas changes to a liquid |
| precipitation | as more water vapor condenses, the drops of water in the cloud grow larger |
| nitrogen fixation | the process of changing free nitrogen into a usable form of nitrogen |
Created by:
aewing
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