The final, stable and self-sustaining stage of ecological succession is called:

The correct answer is Climax Community. Ecological succession is the process by which an ecosystem changes and develops over time. The final, stable, and self-sustaining stage of this succession is called the climax community. At this stage, the community is in equilibrium with its environment and maintains its species composition and structure until a major disturbance occurs. Among the options:

• Climax Community: Correct; it is the final and stable stage of succession.
• Seral Stage: An intermediate stage in succession, not the final one.
• Pioneer Community: The first organisms to colonize a barren area, the initial stage.
• Primary Succession: A type of succession that starts from bare rock, not the final stage.

Hence, the correct answer is "Climax Community".