Question

which is not an example of disturbances that could trigger secondary succession?
forest fire
farming field left alone
volcanic lava flow
flood
why is ecological succession important for biodiversity? *
your answer
how does succession show the resilience of ecosystems? *
your answer

Explanation:

1. First question: Secondary succession occurs in an area where a pre - existing community has been disturbed but soil is still present. Forest fires, abandoned farming fields, and floods leave soil intact and can trigger secondary succession. Volcanic lava flow destroys the soil and creates a new substrate, often leading to primary succession instead.
2. Second question: Ecological succession is important for biodiversity as it creates new habitats over time. As succession progresses, different species can colonize at various stages, increasing species richness and diversity. For example, early - successional species may be replaced by mid - and late - successional species, leading to a more complex and diverse ecosystem.
3. Third question: Succession shows ecosystem resilience as after a disturbance, the ecosystem can recover and change over time. Even after major disruptions like fires or floods, new communities can develop, indicating the ability of the ecosystem to bounce back and adapt.

Answer:

1. C. Volcanic lava flow
2. It creates new habitats over time, increasing species richness and diversity as different species colonize at various successional stages.
3. After a disturbance, new communities can develop, indicating the ecosystem's ability to bounce back and adapt.