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Ecosystem
| Term | Definition |
|---|---|
| Organism | A living thing. |
| Habitat | An environment that provides the things a specific organism needs to live, grow, and reproduce. |
| Biotic factor | The parts of a habitat that are or were once alive and that interacts with an organism. |
| Abiotic factor | The non living parts of an organisms habitat. |
| Species | Is a group of organisms that can mate with each other and produce offspring that can also mate and reproduce. |
| Population | All the members of one species living in a particular area. |
| Community | All the different populations that live together in an area make up a community. |
| Ecosystem | Organisms that live in a particular area, along with the nonliving environment, make up an ecosystem. |
| Ecology | The study of how organisms interact with each other and with their environment. |
| Density | The number of individuals in an area of a specific size. |
| Limiting factor | An environmental that causes a population to stop growing or to decrease in size, such as a fatal disease infecting organisms. |
| Producer | An organism that can make its own food. |
| Consumer | A consumer obtains energy by feeding on other organisms. |
| Decomposers | Decomposers break down biotic wastes and dead organisms, returning the raw materials to the ecosystem. |
| Food chain | A series of events in which one organism eats another and obtains energy and nutrients |
| Food web | A food web consists of many of many overlapping food chains in an ecosystem. |
| Energy pyramid | Shows the amount of energy that moves one feeding level to another in a food web. |
| Photosynthesis | Photosynthesis is the set of chemical reactions. Plants used to turn light water and nutrients into oxygen and energy in the form of sugars. |
| Chlorophyll | Absorbs light, much like sells in solar panels do. |
| Autotroph | An organism that makes its own food is known as an autotroph |
| Heterotroph | An organism that has to get its food from a source and is unable to make its own food is called a heterotroph |
| Law of conservation of mass | States that matter is neither created nor destroyed during any chemical or physical change. |
| Law of conservation of energy | Evaporation is the process by which molecules at the surface of liquid water absorb enough energy to change to a gas. |
| Condensation | The process of a gas changing to a liquid. |
| Precipitation | The heavy drops fall in the form of precipitation. |