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
Ever heard a song a song on the radio and been unable to get it out of your head? It likely got stuck there because of the chorus. In poetry, the chorus is called a refrain.
Coming from an old French word refraindre, meaning 'to repeat', a poetic refrain is a word, group of words, line, or group of lines repeated at specific moments in the poem. In songs, the point of the chorus is to be easily remembered and catchy. In poetry, the refrain's purpose has a little more to it.
The refrain typically appears at the end of the stanza or as its own stanza in between others, though this is not always the case. A refrain can includes rhymes, but it is not necessary. It can also be repeated exactly, or the phrasing can vary slightly. Some poetic forms require a refrain, like a villanelle or a sestina.
Example
The following is a popular example of a poem that uses refrains.
'One Art' by Elizabeth Bishop
The art of losing isn't hard to master;
so many things seem filled with the intent
to be lost that their loss is no disaster.
Lose something every day.
