Question

Primary succession occurs A. After a disturbance that removes an entire community leaving a sterile environment B. After a disturbance that disrupts a community but leaves a seed bank in the soil C. Right before the secondary succession D. After a severe drought in southwest US which kills all trees and crops

Answer 1

Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.