Biology

The correct answer is: A.Disturbance creates opportunities for new species to colonize and establish in an ecosystem.

Disturbance plays a key role in ecological succession by altering the environment in ways that allow new species to colonize and establish themselves. Disturbances, such as fires, floods, hurricanes, or human activities like logging or agriculture, can change the physical environment (e.g., removing vegetation, altering soil composition, or changing light levels). This creates openings for species that may not have been able to thrive before, leading to a process of secondary succession (if soil is still present) or primary succession (if the area is bare of soil).

Why the other options are incorrect:

B.Disturbance has no effect on the colonization and establishment of new species in an ecosystem: This is incorrect because disturbances create opportunities for new species to colonize disturbed areas, allowing for succession to take...