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Ecosystems/Biomes
review of ecosystems and biomes
| term | description |
|---|---|
| individual | single organism in an environment |
| population | individuals of the same kind living in the same environment |
| community | all the populations of organisms living together in an environment |
| ecosystem | a community and its physical environment |
| habitat | place where a population lives |
| niche | each population's role |
| producers | plants that use sunlight to make the food they need from carbon dioxide and water |
| consumers | organisms in an ecosystem that must eat to get the energy they need |
| food chain | shows how the consumers in an ecosystem are connected to one another according to what they eat |
| decomposers | consumers that break down the tissues of dead organisms |
| food web | shows the relationships between many different food chains in a single ecosystem |
| energy pyramid | shows the amount of energy available to pass from one level of a food chain to the next |
| competition | contest among organisms for resources |
| symbiosis | a long-term relationship between different kinds of organisms |
| instinct | behavior that an organisms inherits |
| learned behaviors | behaviors animals learn from their parents |
| exotic | nonnative organisms |
| extinct | the last individual in the population dies |
| endangered | likely to become extinct |
| threatened | likely to become endangered |
| biome | large-scale ecosystem |
| climate zone | region in which yearly patterns of temperature, rainfall, and the amount of sunlight are similar throughout |
| tropical rain forest | found near the equator, always warm and rains nearly every day |
| deciduous forest | trees in this biome shed their leaves each year |
| grasslands | moderate temperatures, moderate rainfall and dominated by tall grasses, "breadbasket" of the world |
| desert | very dry biome with sandy soil |
| taiga | forest of needle-leaved evergreens |
| tundra | rolling plain with low temperatures and long winters |
Created by:
cwillingham
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