Biology

The correct answer is D.It causes a domino effect.

The disappearance of a keystone species has profound consequences on an ecosystem. Since keystone species play critical roles in maintaining the structure and balance of the ecosystem, their removal often triggers a domino effect. This means that the loss of a keystone species can lead to cascading changes in the food web, disruption of species interactions, and potentially the collapse of ecosystem functions. Other species that depend on the keystone species may experience population booms or declines, leading to a significant reshuffling of the ecosystem.

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