Other than the abiotic components, which of the given biotic components are not required to make an

Question

Other than the abiotic components, which of the given biotic components are not required to make an aquarium with small herbivorous fishes a self-sustaining system?\ i) Aquatic plants and aquatic animals\ ii) Terrestrial plants and terrestrial animals\ iii) Decomposers as bacteria and fungi\ iv) Consumers as clown fishes and sea urchins\

Professor PC Thomas Classes · Answer

(d): Terrestrial plants and animals are not required to make an aquarium (aquatic ecosystem). Clown fishes and sea urchins are omnivores therefore can feed on both aquatic plants and animals. So, they are also not required in an aquarium with small herbivorous fishes. \ Expert Tips :  Omnivores can utilise material and energy stored by producers by directly eating them or they can eat other animals which feed on producers.