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Ecosystems
| Term | Definition |
|---|---|
| Biotic | A living thing |
| Abiotic | A nonliving thing |
| Ecosystem | All of the communities and their nonliving surroundings |
| habitat | a place where an organism makes its home. |
| Organism | one individual plant,animal or bacteria (living thing) |
| Population | a group of individuals of the same species living and interbreeding within a given area. |
| Community | populations of different kinds of organisms that live in the same place at the same time. |
| Biosphere | The part of the earth that contains all the ecosystems |
| Producer | an organism,as a plant that is able to produce its own food from inorganic substances |
| Consumer | an organism,usually an animal,that feeds on plants or other animals |
| Decomposer | an organism,usually a bacterium or fungus that breaks down the cells of dead plants and animals into simpler substances |
| Herbivore | An animal that eats only plants |
| Carnivore | an animal that only eats consumers |
| Omnivore | an animal that eats both plants and consumers. |
| Scavenger | an animal that feeds on carrion, dead plant material, or refuse. |
| Predator | an animal that lives by killing and eating other animals |
| Prey | an animal that is caught and killed by another for food. |
| Niche | a place, employment, status, or activity for which a person or thing is best fitted. |
| Biome | an area classified according to the species that live in that location |
| Terrestrial Ecosystem | a land-based community of organisms and the interactions of biotic and abiotic components in a given area. |
| Deciduous Forest | characterized by trees that lose their leaves at the end of each growing season. |
| Grassland | generally open and continuous, fairly flat areas of grass. |
| Rainforest | a hot, moist biome where it rains all year long. |
| Desert | an area, often covered with sand or rocks, where there is very little rain and not many plants. |
| Aquatic ecosystem | oceans, lakes, rivers, streams, estuaries, and wetlands. |
| freshwater | naturally occurring water that is not salty, and is suitable for consumption if clean or processed. |
| Pond | a small body of still water formed naturally or by hollowing or embanking. |
| Lake | a large body of water surrounded by land. |
| River/Stream | a large natural stream of water flowing in a channel to the sea, a lake, or another such stream. |
| Saltwater ecosystem | aquatic environments with high levels of dissolved salt. |
| Ocean | a very large expanse of sea, in particular each of the main areas into which the sea is divided geographically. |
| Saltmarsh | coastal wetlands that are flooded and drained by salt water brought in by the tides. |
| Estuary | the tidal mouth of a large river, where the tide meets the stream. |
| Food chain | a hierarchical series of organisms each dependent on the next as a source of food. |
| Primary consumer | animals that eat plants. |
| secondary consumer | The organisms that eat the primary consumers |
| tertiary consumer | The organisms that prey on the secondary consumers |
| Trophic levels | ranges from a value of 1 for primary producers to 5 for marine mammals and humans. |
| Autotroph | an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. |
| Heterotroph | an organism deriving its nutritional requirements from complex organic substances. |
Created by:
SVlanka1
Popular Ecology sets