Question

Why are small animals important in an ecosystem?

Answer 1

Even small organisms are important in an ecosystem because every organism forms a part of food chain/food web/ecosystem.

Every little animal within the ecosystem has a vital role in the well-being of the planet. If one species is extinct due to some imbalance, it can have significant cascading effects throughout the ecosystem. For example, even a small bee is, in fact, a crucial worker in the factory of nature.