Biology

The correct answer is A.It would COLLAPSE or not be able to survive.

Keystone species play a critical role in maintaining the structure, diversity, and function of an ecosystem. Their disappearance can lead to significant disruptions in the ecosystem, as they often regulate populations, shape habitat, or contribute to essential ecological processes. Without a keystone species, the balance of the ecosystem is often upset, potentially leading to the collapse of food webs, loss of biodiversity, and a decline in ecosystem health.

B.It would help SUSTAIN the ecosystem is incorrect because the disappearance of a keystone species typically causes more harm than good. Keystone species are essential for the sustainability of the ec...