Dear Student,

Primary Succession occurs in an area without any initial vegetation. Secondary succession occurs in an area with initial vegetation. Primary succession is initiated either due to a biological factor or an external agent. A external factor initiates secondary succession.

Serial Community: There are several intermediary seral communities.

Meaning: It is a type of succession that starts from barren or uninhabited land.

Occurs: It occurs in lifeless or barren areas.

Environment: It begins with an unfavorable environment.

Thank You.