Chp. 19 Cycles in Nature
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Created by:
Warnerg Plus on October 6, 2011
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Description:
Holt - Science & Technology
Chp. 19- Cycles in Nature
The Cycles of Nature
Ecological Succession
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19 terms
Terms | Definitions |
|---|---|
 succession | The replacement of one type of community by another at a single place over a period of time. |
| pioneer species | A species that colonized an uninhabited area and that starts a process of succession |
| evaporation | The change of a substance from a liquid to a gas |
| condensation | The change of state from gas to a liquid |
| precipitation | Any form of water that falls o the earths surface from the clouds |
| decomposition | The breakdown of substances into simpler molecular substances |
| combustion | The burning of a substance |
| biodiversity | The variety of species in an area |
| Runoff | is precipitation that falls on land and then goes into rivers and lakes |
| Animals get the carbon they need | by eating plants. |
| decomposition | Organic matter being broken down by bacteria and returning carbon dioxide and water to the environment |
| What organisms need to build proteins and DNA | nitrogen |
| How do most animals get the nitrogen they need? | from eating other organisms |
| Primary succession | is a community growing in an area where organisms have never lived |
| Primary succession begins | on bare rock. |
| Climax species | is a well adapted species in a mature community. |
| A forest fire can show succession because | the trees and plants have been destroyed however there is still soil that contains nutrients that was unaffected therefore organisms will begin to re-grow. |
| Biodiversity lets | a community undergo changes and survive |
| mature community | has organisms that are well adapted to live together in the same area over time |
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