Question

1. why are keystone species important for biodiversity? they reduce competition among other species. they provide food for apex predators. they enhance genetic diversity within populations. they maintain species diversity and ecosystem equilibrium.

Explanation:

Keystone species have a disproportionately large impact on their ecosystems relative to their abundance. They help maintain species diversity by controlling populations of other species and ensuring the proper functioning of the ecosystem, thus preserving ecosystem equilibrium.

Answer:

They maintain species diversity and ecosystem equilibrium.