Role of Insects in Ecosystem

Insects are found everywhere in the globe. They are common and minute creature on earth planet. More than 1.5 million species of insects have been identified. Among insects some are beneficial and few insects cause damage to agricultural crops. They are used as a food and medicines. They are also used as a bio indicators in our ecosystem. Their size, shape, color, biology, and life history are so diverse that it makes the study of insects absolutely fascinating.