Explain the role played by predators in a community.

The role played by predators in a community are:

(i) Predators form an essential link for energy transfer among various trophic levels in a community.

(ii) They are responsible for keeping the population of their prey in check.

(iii) They maintain a balance and diversity among various preys and thus, create diversity.

(iv) They can lead to the extinction of a species.