Ecological Succession

The video tutorial explains ecological succession, a process of change in ecosystems. It covers primary succession, which occurs in new habitats without soil, such as after a volcanic eruption, and secondary succession, which happens in preexisting habitats that have been disturbed. The video concludes with the concept of ecological climax, where the ecosystem reaches stability.

What is the primary role of ecological succession in an ecosystem?

• To maintain the current state of the ecosystem

• To gradually change the ecosystem's composition or structure

• To eliminate all forms of life in the ecosystem

• To speed up the growth of plants

Which of the following best describes primary succession?

• It happens in new habitats without soil

• It is faster than secondary succession

• It occurs in areas with existing soil

• It involves the destruction of existing vegetation

What typically initiates primary succession?

• A flood

• A forest fire

• A volcanic eruption

• Human activities

Why is secondary succession generally faster than primary succession?

• Because it starts from scratch

• Due to the absence of any disturbances

• Because it occurs in barren areas

• Due to the presence of existing soil and seed banks

What is the final stage of ecological succession called?

• Initial stage

• Ecological climax

• Secondary stage

• Primary stage