Why is protecting small organisms also necessary in wildlife conservation?

They play roles in food chains and ecological balance

An ecosystem contains organisms of many sizes, from large animals to tiny insects, fungi, bacteria, and other small life forms. Each may have a role as a producer, consumer, decomposer, pollinator, predator, or prey. Removing a small organism can affect the organisms that feed on it or depend on its work. Therefore, wildlife conservation cannot focus only on large or attractive animals.

Option A is correct because small organisms help maintain food chains and ecological balance. The statement that they have no importance is false, and organisms are not always non-living. Building buildings is not the general ecological role of small organisms. Protecting biodiversity means protecting the relationships and functions of many kinds of organisms, not merely saving a few famous species.

This is a Class 9 Geography question. Chapter: Natural Vegetation and Wildlife. Topic: Wildlife.