AP BIOLOGY

Detailed explanation-1: -The stages are: Pioneer Species: These are the first species to begin colonizing the ecosystem. Intermediate Species: Once the pioneer species colonize the area, this species begins to emerge. Climax community: This is the stage at which a more stable ecosystem begins to emerge and homeostasis is achieved.

Detailed explanation-2: -What is Secondary Succession? Secondary succession is an ecosystem that begins where there was a previous ecosystem present. In the case of secondary succession, an event such as a fire, tornado, volcanic eruption, flood, or other type of catastrophic event took place, destroying the existing ecosystem.

Detailed explanation-3: -Secondary succession starts when a disturbance (such as wind storms, insect outbreaks, logging, avalanches, bulldozers, or fire) leaves the soil intact. Seeds, spores, and roots usually remain as well. Sites that begin with secondary succession reach the next stage more quickly than during primary succession.