Question

How the following creatures can be useful a)dragonfly

Answer 1

Dragonfly eggs are laid and hatched in or near water, so their lives impact both water and land ecosystems. Once hatched, dragonfly nymphs are able to breathe underwater, and they use a motion similar to jet propulsion to move through their environment. This enables them to eat harmful aquatic organisms such as mosquito larvae. The nymph will continue contributing to this ecosystem for one to five years before becoming a mature adult.