Final answer:
During secondary succession, topsoil and nutrients do not stay the same, but there is still a soil ecosystem present that provides a foundation for new growth.
Step-by-step explanation:
No, during secondary succession, topsoil and nutrients do not stay the same.
Secondary succession occurs in areas where life has already existed, so there is already a soil ecosystem present. However, when a disturbance like a wildfire or flood occurs, it may temporarily remove or damage the existing vegetation and disrupt the balance of nutrients in the soil. As a result, some topsoil and nutrients may be lost or altered.
However, secondary succession is characterized by the presence of a soil ecosystem, which provides a foundation for rapid recolonization and the establishment of new plant communities.