NEET BIOLOGY

ECOLOGY

ORGANISMS AND THE ENVIRONMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does secondary succession help restore equilibrium to a region destroyed by a flood?
A
It increases the number and types of species.
B
It brings back species from extinction.
C
It stops other floods from occurring.
D
It decreases the rate of evolution.
Explanation: 

Detailed explanation-1: -How does secondary succession help restore equilibrium to a region destroyed by a flood? It increases the number and types of species.

Detailed explanation-2: -During secondary succession, tropical forests increase in structural complexity, taxonomic diversity, and functional diversity. These changes lead to accumulation of carbon and nutrients in aboveground vegetation and create habitats for forest dwelling animal species.

Detailed explanation-3: -The results showed that plant richness and species diversity increased significantly during the secondary succession of tropical lowland rainforests. The order of positive correlations between nitrogen-fixing legumes and other species in plant communities was early-mid > mid > early successional stage.

Detailed explanation-4: -In secondary succession, a previously occupied area is re-colonized following a disturbance that kills much or all of its community. A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill animals unable to flee the area.

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