Insects are one of the largest groups of animals, with over 7, 50,000 species that can be found on Earth. Their bodies are divided into three regions – the head, the abdomen and the area in between which is called the thoracic region.
Insects generally have three pairs of walking legs. Some have wings, and some do not. They have a water proof layer on the outside of their bodies, which helps them to move to environments where other organisms cannot survive. They also reproduce very fast which accounts for their huge number on the surface of the earth.
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