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Ch. 6 Ecosystems
Term | Definition |
---|---|
Ecosystem | All the living and nonliving things in an area and their interactions. All ecosystems contain population and communities |
Habitat | Provides all the things an organism needs to live. Food, water, and shelter |
Biotic | Means living. Animals, plants, and insects |
Abiotic | Meaning nonliving. Water, air, sunshine, temperature |
Population | A group of one species living in an area. People, and insects |
Community | Is a different population in an area and community members depend on each other to fill needs. Forest: oak trees, maple trees, Insects |
Coral reef | Underwater ecosystem built by tiny animals. Warm, clear, shallow water |
Tropical rainforests | Warm, rainy climate all year long |
Desert | Little rain, hot days,cool nights |
Taiga | Harsh, long winters, soil that is low in nutrients |
Tundra | Cold weather, little rain |
Coastal wetlands | Covered by a shallow layer of sea water some or all of the year |
Mixed forest | Cold winters many trees and animals |
Prairie | Found in Midwest and Plains. Little rain but excellent soil |
Niche | The role that an organism has an ecosystem |
Carrying capacity | The number of organisms that can live in a habitat |
Predator | The one that hunts and eats other animals |
Prey | The one that gets hunted and eaten |
Producers | Make their own food for energy |
Consumers | Can't make their own food and get energy from other producers or consumers |
Herbivores | Eat only plants |
Carnivores | Eat only other animals |
Omnivores | Eats plants and animals |
Scavengers | Eats dead animals |
Decomposers | Get energy by breaking down waste and dead organisms |
Food chain | A series of steps showing how energy moves from biotic factor to another |
Food web | A diagram of many different food chains |
Symbiosis | A long term relationship between two different organisms |
Parasites | Live inside or outside another organism taking nutrients from that organism |