Q. Ecological succession is typically characterised by:
1.Increased biological productivity
2.Increased niche specialization
3.Simpler food webs
4.Shift of nutrients from reservoirs to organisms
Select the correct answer using the code below:
Answer: B
Notes:
Explanation:
- The following characteristics are observed during ecological succession:
- Productivity rises as more plants grow, increasing biomass and energy flow in the system.
- Organisms begin to occupy more specific ecological roles, reducing competition and enhancing ecosystem stability.
- Succession leads to more complex food webs with multiple trophic levels and interactions, not simpler ones.
- Nutrients that were earlier in the soil, rocks, or atmosphere are increasingly cycled through living organisms (biotic components) as the ecosystem matures.
Source: Environment (NCERT)
