LIFE SCIENCE

Detailed explanation-1: -Every ecosystem has certain species that are critical to the survival of the other species in the system. The keystone species could be a huge predator or an unassuming plant, but without them the ecosystem may not survive.

Detailed explanation-2: -The key difference between keystone species and foundation species is that keystone species are the species that have a greater effect on all the other species in an ecosystem while foundation species are the species that play a major role in creating and maintaining a habitat for other species.

Detailed explanation-3: -Keystone species is a species, which has a significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species.