Question

Using an example of a natural pond & a small aquarium , explain the structure of an aquatic ecosystem. Between the pond & the aquarium, which of the two is a self-sustaining ecosystem? Give reason in support of your answer.

Answer 1

Answer:

pond is an example of natural ecosystem where as aquarium is an example of artificial ecosystem.

Ponds do not need to be cleaned because it has microorganisms like bacteria and fungi that break down dead remains and waste products of organisms and clean them naturally. but the aquarium does not contain soil order composting bacteria.