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Ecosystems
important science junk
| Term | Definition |
|---|---|
| Community | Interaction of all the living things in an area. |
| Organism | Living things like plants and animals. |
| Population | Group of the same type of organism. |
| Ecosystem | All the living things in an area and their habitat. |
| Habitat | Physical place where an organism lives or its shelter. |
| Biotic Factor | Living parts of an ecosystem. |
| Abiotic Factor | Non-living parts of an ecosystem. |
| Tundra | Located near the north and south poles where the ground is permanently frozen. |
| Temperate Forest | Deciduous (leaves) forest with medium rainfall. |
| Grassland | Large flat area of land covered mostly with tall grass and few trees. |
| Tropical Forest | Abundant rainfall and constant temperatures (rainforest). |
| Desert | Little rainfall and extreme temperature changes. |
| Aquatic | To live in the water instead of on the land or in the air. |
| Freshwater | Streams, lakes, ponds, rivers, lakes, and marshes with low level salt content. |
| Estuary | Place where fresh and salt water meet in a coastal area. |
| Marine | Aquatic ecosystem like an ocean and sea that have a very high salt content. |
| Producer | Living things (plants) that make their own food. |
| Consumer | Living things that eat producers and/ or other consumers. |
| Herbivore | Animals that eat only plants. |
| Carnivore | Animals that eat only meat. |
| Omnivore | Animals that eat both plants and meat. |
| Decomposer | Organisms that break down dead plants or animals and return their nutrients to the soil. |
| Predator | A consumer that hunts another consumer for food. |
| Prey | Consumer that is hunted by another consumer. |
| Food Chain | Path of energy from the sun, producer, consumer, and decomposer. |
| Food Web | Model that shows several food chains linked together. |
| Sun | Primary energy source in a food chain. |
| Scavenger | An organism that feeds on dead organisms. |
| Niche | The job an organism plays in a habitat. |
| Competition | Contest between organisms for resources. |
| Lake | Large body of fresh water surrounded by land. |
| Pond | Small body of fresh water surrounded by land. |
| Terrestrial | To live or grow on the land instead of the air or water. |
| Energy Pyramid | Shows that less and less food and energy are available as you go from the base of the pyramid to the top. |
| Flora | Plant life within an ecosystem. |
| Fauna | Animal life within an ecosystem. |
| Prairie | Grassland found mainly in the Midwestern United States |
| Savannah | Grassland found mainly in Africa and Australia |