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Ecosystems & Biomes
| Term | Definition |
|---|---|
| Biome | A group of ecosystems with similar climates and organisms |
| Grassland | A biome where grasses are the main plant life |
| Tundra | An extremely cold, dry biome. |
| Taiga | Biome with long cold winters and a few months of warm weather; dominated by coniferous evergreens; also called boreal forest |
| Desert | An extremely dry area with little water and few plants |
| Deciduous Forest | Forest in a temperate region, characterized by trees that drop their leaves annually |
| Tropical Rainforest | Biome near the equator with warm climate wet weather and lush plant growth |
| Freshwater Biomes | Lakes, ponds, rivers, streams and wetlands (waters have no salt) |
| Marine Biome | Aquatic biome in the salt water of the ocean |
| Ecosystem | A community of organisms and their abiotic environment |
| Biotic factors | living parts of an ecosystem |
| Abiotic factors | nonliving parts of an ecosystem |
| food chain | series of steps showing one flow of energy in an ecosystem |
| Producer/Autotroph | organisms that make their own food through photosynthesis |
| Consumer/Heterotroph | An organism that gets their energy by feeding on other organisms. |
| Herbivore | A consumer that eats only plants. |
| Carnivore | A consumer that eats only animals. |
| Omnivore | An animal that eats both plants and animals |
| Decomposer | An organism that breaks down wastes and dead organisms |
| energy pyramid | A diagram that shows the amount of energy that moves from one feeding level to another in a food web/chain |
| food web | A community of organisms where there are several interrelated food chains |
| Ecology | Scientific study of interactions among organisms and between organisms and their environment |
| habitat | Place where an organism lives |
| Niche | An organism's particular role in an ecosystem |
| Organism | An individual living thing |
| Population | A group of individuals that belong to the same species and live in the same area |
| Community | All the different populations that live together in an area |
| Population Density | Number of individuals in a given area |
| dominant species | Species that are the most abundant |
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