AP BIOLOGY

Detailed explanation-1: -Ecological succession is the process by which the mix of species and habitat in an area changes over time. Gradually, these communities replace one another until a “climax community”-like a mature forest-is reached, or until a disturbance, like a fire, occurs. Ecological succession is a fundamental concept in ecology.

Detailed explanation-2: -Succession is the order of colonization of species in an ecosystem from a barren or destroyed area of land. Mosses and lichens are the first species that inhabit an area. They make the area suitable for the growth of larger species such as grasses, shrubs and finally trees.

Detailed explanation-3: -Answer: D it is a random process, The process through which the mix of species and environment in a given region changes over time is known as ecological succession.

Detailed explanation-4: -Ecological succession is the gradual and fairly predictable change in the species composition of a given area. During succession, some species colonies area and their population become more numerous, whereas, the population of other species declines and even disappears.

Detailed explanation-5: -These changes lead finally to a community that is in near equilibrium with the environment and that is called a climax community. The gradual and fairly predictable change in the species composition of a given area is called ecological succession.