DENDROLOGY

Detailed explanation-1: -Primary succession-establishment and development of an ecosystem in an area that was previously uninhabited. Pioneer species-organism that is first to live in a previously uninhabited area. Secondary succession-reestablishment of a damaged ecosystem in an area where soil was left intact.

Detailed explanation-2: -Secondary succession is the ecological succession that occurs after the initial succession has been disrupted and some plants and animals still exist. It is usually faster than primary succession as soil is already present, and seeds, roots, and the underground vegetative organs of plants may still survive in the soil.

Detailed explanation-3: -Primary succession occurs in an environment without previous life, or a barren habitat. Secondary succession occurs in an area that had previously been inhabited but experienced a disturbance, such as a wildfire. In this scenario, there still would be soil.