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The structure of an Insects The fundamental difference in the structure of an insect and that of a bird or mammal is that an insect is an invertebrate—that is, it has no backbone or bone structure of any kind. The strength of the body lies in the exoskeleton which is soft in a few cases, … Read more
For convenience One tends to call almost any little creeping animal an insect, but the best way of recognizing an. insect from other creatures in the large group of Arthropoda is by counting the legs. Insects have six legs, spiders have eight and other creatures have many more. The larval forms are often legless and … Read more