Biology

The correct answer is B.Biodiversity decreases.

Removing a keystone species typically leads to a decrease in biodiversity. This is because keystone species play essential roles in maintaining the structure and stability of an ecosystem. Their absence often causes a cascade of ecological disruptions that can negatively impact other species, either by reducing their food sources, altering their habitats, or changing their interactions with other species. As a result, the variety and abundance of species within the ecosystem usually decline.

A.Biodiversity increa...