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Ecosystems — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems3 Marks
Question
Define ecological succession. Give three differences between seral stages and climax community during succession.
✓

Answer

The sequential, gradual and predictable changes in the species composition in an area are called succession or ecological succession.
S. No.
Seral stage
Climax community
(i)
It is the sequential replacement and establishment of species in the process of succession.
It is the community which gets established at the terminal stage of succession.
(ii)
The species composition changes from time to time.
The species are stable and species composition do not change.
(iii)
Simple food chains and food webs are found.
Complex food chains and food webs are found.

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