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Ecosystems Week 1
| Term | Definition |
|---|---|
| Ecosystem | A community and the abiotic parts of its environment |
| Autotroph | Any organism that can create its own food from inorganic materials |
| Heterotroph | An organism that cannot create its own energy and must instead rely on consuming nutrients from other organisms |
| Producers | An organism that makes its own food |
| Primary Consumers | Organisms that eat plants |
| Secondary Consumers | Organisms that eat the primary consumers and or may eat plants |
| Decomposers | A type of consumer that gets its food by breaking down animal wastes and remains of dead plants and animals |
| Herbivores | An animal that consumes only plants |
| Carnivores | An animal that eats only other animals |
| Omnivores | An animal that eats plants as well as other animals |
| Population | Organisms of the same species living together in the same environment |
| Community | The populations living in the same environment at the same time |
| Population Density | Is a measure of how many organisms live in that area |
| Limiting Factor | An environmental factor that causes a population to decrease |
| Food Chain | A model that shows one set of feeding relationships among living things |
| Food Web | A model that shows many different feeding relationships among living things |
| Predator | An animal that feeds on other living animals |
| Prey | The animals predators eat |
| Organism | Any individual living thing |
| Succession | An ecological change |
| Energy Pyramid | A model that shows the available amount of energy in each trophic layer in an ecosystem |
| Competition | It is what animals do to survive, they fight for their food |
| Mutualism | The symbiotic relationship that benefits both organisms involved |
| Symbiosis | Interaction between two organisms in close physical association |
| Coexistence | To live at the same time |
| Cooperation | To work together to do something |
| Succession Primary | Regions in which soil is in capable of sustaining life |
| Succession Secondary | Areas where communities previously existed been removed |
| Taiga | A biome where winters are very cold and long and the dominant plants are conifers |
| Tundra | Extremely cold climate located near the North and South Poles and on the tops of mountains; receives very little precipitation and has no trees |
| Deciduous Forest | A biome in which the dominant plants are broad-leaved trees that shed their leaves each fall |
| Grasslands | A biome where the dominant plants are grasses |
| Tropical Rain Forests | A forest that is humid and rainy for much of a year |
| Deserts | An area that gets little precipitation and has very little vegetation |
| Ocean | A large body of salt water that covers most of Earth |
Created by:
Adrienne7412
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