What are 5 characteristics of insects?
3 body parts
one pair of antennae
open circulatory system
The single greatest characteristic is that all adult insects possess six pairs of legs. There are other characteristics which most, but not all, insects share, i.e. wings, a body divided into head, thorax, and abdomen, and metamorphosis, but these characteristics may be absent in some primitive groups of insect.
1. Only insects have wings 2. Insects have six legs 3. Only insects undergo complete metamorphosis 4. Insects have 3 distinct body sections 5. Insects have antennae 6. Insects have external mouthparts 7. Only insects have compound eyes 7 is the lucky number- if it meets at least 3 of these criteria, it is definitely an insect.