ECOLOGY
ECOLOGICAL SUCCESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fewer changes must occur in secondary succession
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There are more pioneer species in secondary succession
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The environmental conditions are more extreme in primary succession
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There are many trophic levels in secondary succession
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Detailed explanation-1: -Secondary succession is more common and usually occurs faster than primary succession because the substrate is already present. Secondary succession occurs on a surface where an ecosystem has previously existed. This happens after some sort of disturbance.
Detailed explanation-2: -Explanation: Secondary succession usually occurs faster than primary succession because the substrate is already present. In primary succession, there is no soil and it needs to form. This process takes time, as pioneer species must colonize the area, they must die, and as this happens over and over again, soil forms.
Detailed explanation-3: -Why does secondary succession typically proceed faster than primary succession? Because it mostly occurs on a surface where an ecosystem has previously existed. Primary succession only occurs on a surface where no ecosystem existed before.