Life Science - Chapter 22
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Created by:
cjones7787 on April 10, 2012
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17 terms
Terms | Definitions |
|---|---|
 animal society | a group of animals of the same species which live together. |
| carnivore | an organism the eats only animals |
| commensalism | a relationship in which one organism benefits and the other one is not helped or harmed |
| competition | the struggle among organisms for an essential factor that is in short supply in the environment |
| decomposer organism | an organism that breaks down dead organisms and returns this material to the soil |
| ecology pyramid | an illustration shaped like a pyramid and divided into layers to show the energy relationships between organisms in an ecosystem |
| epiphyte | a plant that grows on the outside of another plant but does not take nourishment from the plant on which it grows. |
| food chain | the passing of materials and energy from one organism to another |
| food web | a method of illustrating the interrelationships between food chains in an ecosystem. |
| herbivore | an organism that eat only plants |
| independent organism | an organism that exists without the aid of other members of the same species |
| mutualism | a relationship that is beneficial to both organisms involved |
| omnivore | an organism that eats plants and animals |
| predator | an animal that feeds on other animal |
| prey | animal that predator eats |
| scavenger | an animal that eats dead bodies |
| social insect | an insect that lives in a colony |
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