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Changing Ecosystems
| Question | Answer |
|---|---|
| The series of predictable changes that occur in a community over time | Succession |
| Two types of succession are: | Primary and Secondary |
| ___________________ is the series of changes that occur in an area where no soil or organisms exist. | Primary Succession |
| The first species to populate an area are called _______________________. | Pioneer Species |
| Typical pioneer species are _____________________ and ___________________. | Mosses and lichens |
| As pioneer species grow they help break up the _____________ and form _____________. | Rock and Soil |
| When organisms die, they provide _________________ that enrich the soil. | Nutrients |
| The specific plants that grow depend on the ____________________. | Climate |
| Eventually, ____________________ may lead to a community of organisms that does not change unless the ecosystem is disturbed. | Succession |
| Maturity of an ecosystem may take _____________________. | Centuries |
| Fires that are set on purpose to control wildfires are called __________________. | Prescribed burns |
| _____________________ occurs following a disturbance to an ecosystem. Such as clearing a forest for farmland. | Secondary Succession |
| Possible causes of Secondary Succession are: ______________, ______________, and _______________. | Fires Hurricanes and Tornados |
| Grass poking through a sidewalk is an example of ______________________ succession. | Secondary |
Created by:
hedliner
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