Question Details

This is true about secondary succession

Options

A

follows primary succession

B

takes place on a deforested site

C

is similar to primary succession except that it has a relatively slower pace

D

begins on a bare rock

Correct Answer :

takes place on a deforested site

Solution :

The correct option is "takes place on a deforested site".

Ecological succession is the process by which the structure of a biological community evolves over time. It is generally categorized into two main types: primary succession and secondary succession.

Primary succession begins in essentially lifeless areas—regions where there is no pre-existing soil or where the soil has been completely destroyed. Examples include areas left bare after a volcanic eruption, retreating glaciers, or bare rock. In these environments, pioneer species (like lichens and mosses) must first break down the substrate to create soil over a long period of time.

Secondary succession occurs in areas where an existing community has been cleared by a disturbance, but the soil remains intact. A deforested site (for instance, an area cleared by logging or a forest fire) is a classic example of where secondary succession takes place. Because the nutrient-rich soil is already present, the ecosystem recovers much faster than in primary succession, allowing seeds, roots, and underground vegetative organs to quickly regenerate the plant community.

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