click below
click below
Normal Size Small Size show me how
Echosystems
| Term | Definition |
|---|---|
| Habitat | An environment that provides the things a specific organism needs, to live, grow, and reproduce. |
| Organism | Living thing |
| Biotic factor | The parts of a habitat that are or were once alive. |
| Abiotic factor | No living parts of an organism’s habitat. |
| Species | A group or organisms that can mate with each other 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 | The community or organisms that lives in a particular area, along with the non living environment. |
| Ecology | The study of how organisms interact with each other and with their enviorment. |
| Population density | The number of individuals in an area of a specific size. |
| Limiting factor | Environmental factor that causes a population to stop growing or to decrease in size. |
| Carrying capacity | The largest population that an area can support. |
| Consumer | Obtains energy by feeding on other organisms |
| Carnivores | Only eat animals |
| Scavenger | A carnivore that feeds on the bodies of dead organisms |
| Herbivores | Consumers that only eat plants |
| Omnivore | Consumer that eat both plants and animals. |
| Decomposers | Break down biotic wastes and dead organisms |
| Food chain | A series of events in which one organism eats another and obtains energy. |
| Food web | Consists of many overlapping food chains in an echo system. |
| Commensalism | A relationship in which one species benefits and the other species is neither helped or harmed. |
| Mutualism | A relationship in which both species benefit |
| Parasitism | A relationship that involves one organism living with, on, or inside another organism harming it. |
| Competition | The struggle between organisms to survive as they use the same limited resources. |
| Niche | How an organism obtains its food, the type of food an organism eats, and what other organisms eat it. |
| Producer | An organism that can make its own food |
| Energy pyramid | Shows the amount of energy that moves from one feeding level to another in a food web |