The hero believes in and receives supernatural aid
Answer:
When Harry lets the snake out of the pen at the Zoo
Explanation:
That’s the only one I can remember
One difference between primary and secondary succession is that; the secondary succession begins on soil while primary succession begins on newly exposed surfaces.
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Further Explanation:
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Ecological succession
- It is a gradual process by which ecosystems undergo changes and develop over a period of time.
- The changes in an ecosystem occurs as a result of interaction between organisms and the environment through processes such as growth and reproduction.
<h3>Types of Ecological succession;
</h3><h3>Primary succession
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- This is a type of succession that takes place in lifeless areas as a result of disturbances such as glaciers, lava flow from volcanoes, sand dunes, etc.
- These regions are not capable of sustaining life of organisms as a result of the disturbances caused by those factors.
<h3>Secondary succession
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- Secondary succession is an ecological succession that results from disturbances such as forest fires, abandoned field or after occurrence of floods.
<h3>Differences between secondary and primary succession </h3>
- The difference between the two types of ecological succession is the fact that; primary succession starts with bare rocks while secondary succession starts with existing soil and dirt.
- Additionally, it takes about a thousand years for primary succession to develop while secondary succession takes about a 100 or more years to develop.
Keywords: Ecological succession, primary succession, secondary succession
<h3>Learn more about:
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Level: High school
Subject: Biology
Topic: Ecological succession
Sub-topic: Types of succession
