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Ecosystems — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems3 Marks
Question
Differentiate between primary and secondary succession. Provide one example of each.
✓

Answer

S.No. Primary Succession Seconday Succession
1. It begins with areas where no living organisms ever existed. It begins in areas where natural biotic communities have been destroyed.
2. Establishment of a biotic community is very slow. Establishment of a biotic community is faster.
 

Example

Newly cooled lava/bare rocks/newly created ponds or reservoir.

Example

Abandoned farm lands/burnt or cut forests/lands that have been flooded.

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