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LE - Topic 6
LE topic 6 Ecology
| Term | Definition |
|---|---|
| abiotic | any nonliving component of an environment: NEVER ALIVE |
| autotroph | an organism that makes its own food |
| biodiversity | the number of different species in a given area |
| biosphere | The entire portion of Earth inhabited by life; the sum of all the planet's ecosystems. |
| biotic | the living organisms in an ecosystem |
| carnivore | a consumer that eats only animals |
| carrying capacity | The largest population that an area can support |
| community | combination of all of the different populations that live and interact in the same environment |
| competition | the struggle between organisms to survive in a habitat with limited resources |
| consumer | organism that obtains food by eating other organisms |
| decomposer | organisms, such as fungi and bacteria, that break down and absorb nutrients from dead organisms |
| ecological niche | A specific role of a species within an ecosystem, including its use of resources, and relationships with other species |
| ecological succession | series of changes by which one habitat is replaced by another |
| ecology | study of how organisms interact with the living and noliving things that surround them |
| ecosytem | all the living and non |
| energy pyramid | diagram that shows the how food energy moves through the ecosystem |
| environment | All living and nonliving components of an organism's surroundings. |
| finite | limited, able to be used up |
| food chain | identifies specific feeding relationships among organisms |
| food web | representation of many interconnected food chains that shows the feeding relationships among producers, consumers and decomposers |
| habitat | where an animal or plant lives |
| herbivore | organism that eats only plants |
| heterotroph | organism that can't make its own food, a consumer |
| host | organism in a parasitic relationship that provides the home and/or food for a parasite |
| limiting factors | environmental factors that restrict population growth |
| parasite | an organism that lives and feeds on other organisms. |
| population | all the individuals of the same species that live ina specific area |
| predator | an animal that hunts and kills other animals for food |
| prey | an animal that is hunted and killed by predators |
| producer | an organism that makes its own food |
| scavenger | A carnivore that feeds on the bodies of dead organisms |
Created by:
jhshwood
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