Question

question 38 of 50
which of the following is an example of succession?
a. after a disaster, small plants begin to grow in the affected area
and are then replaced by larger plants.
b. big plants and small plants both grow near a lake.
c. only small plants can grow in an area high up on a mountain.
d. a forest fire takes place. animals and plants compete for the
remaining resources.

Explanation:

Ecological succession is the process by which the structure of a biological community evolves over time. In option A, after a disaster (which could be a disturbance like a fire, flood etc.), small plants (pioneer species) first colonize the area. As time passes, these are replaced by larger plants. This is an example of secondary succession (since the area had some previous biological activity before the disaster). Option B just describes co - existence of plants near a lake, not a sequential replacement. Option C is about a limitation of plant growth in a particular area (high up on a mountain) and not succession. Option D is about competition after a forest fire, not the process of succession which is about the sequential change in community structure.

Answer:

A. After a disaster, small plants begin to grow in the affected area and are then replaced by larger plants.