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Ecosystem
| Question | Answer |
|---|---|
| Organism | An live thing |
| Habitat | Environment that provides the things a specific organism needs to live grow and reproduce |
| Biotic factors | Part of a habitat that are or were once alive |
| Abiotic factors | Nonliving things in the environment |
| Species | A group of organisms that can mate with each and produce offspring |
| Population | All the members of one species living in a particular area |
| Community | All the different populations that live together in an area |
| Ecosystem | Organisms that lives in a particular area along with the nonliving environment |
| Ecology | The study of how organisms interact with each other and with their environment |
| Population density | The number of individuals in an area of a specific size |
| Limiting factor | An environment factor that causes a population to stop growing |
| Carrying capacity | The largest population that an area can support |
| Consumer | Obtains energy by feeding on other organisms |
| Carnivores | Consumers that eat only animals |
| Scavenger | Carnivore that feeds on the bodies of dead organisms |
| Herbivores | Consumers that eat only plants and other photosynthetic organisms |
| Omnivore | Consumers that eat both plants and animals |
| Decomposers | Break down biotic wastes and dead organisms |
| Producer | An organism that can make its own food |
| Food chain | A series of events in which one organism eats another |
| Food web | Consists of many overlapping food chains |
| Energy pyramid | Shows the amount of energy that moves from one feeding level to another |
| Photosynthesis | The set of chemical reactions plants use to turn light water and nutrients into oxygen and energy |
| Chlorophyll | Absorbs light |
| Autotroph | An organism that makes its own food |
| Heterotroph | An organism that has to get its food from a source |
| Niche | How an organism obtains it food/ the type of food |
| Competition | The struggle between organisms to survive |
| Predation | One organism kills another for food or nutrients |
| Symbiosis | Any relationship in which two species live closely together |
| Commensalism | A relationship in which one species benefits and the other species is neither helped nor harmed |
| mutualism | which is a relationship in which both species benefit. |
| parasitism | a relationship that involves one organism living with, on, or inside another organism and harming it. |