Living Environment Regents Practice Test

If no further disruptions occur, what is likely to happen to a new stable ecosystem?

1. It will evolve into a different ecosystem

2. It will remain a stable ecosystem

3. It will become less stable over time

4. It will attract more species

The correct answer is: It will remain a stable ecosystem

A new stable ecosystem is characterized by a balance between its biotic (living) and abiotic (non-living) components. Once this equilibrium is achieved and maintained through processes such as nutrient cycling, energy flow, and species interactions, the ecosystem tends to remain stable, provided there are no significant disturbances like natural disasters or human activities that could disrupt this balance. This stability is crucial for sustaining the diversity of species within that ecosystem, as it allows populations to thrive and maintain their interactions over time. Although ecosystems can continue to evolve slowly in response to gradual environmental changes, the core concept here is that a stable ecosystem can persist in its current state. Hence, without additional disturbances, it is likely that the ecosystem will continue to function effectively in its established state, maintaining its overall structure and species composition.