Q:

What do all insects have in common?

A:

Quick Answer

One thing that all insects have in common is that they all have three body regions. They all also have jointed legs.

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Full Answer

Insects all contain a head, a thorax and an abdomen. These may vary in size and color, but they can be found in nearly every insect on the planet. Each segment of the body has a cuticle in place which helps the body bend and move. The cuticle stays the same size until the insect sheds and regrows it. All insects also have a breathing system which contains a tube. This tube allows them to take in and expel air.

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