‘entomon' and `logos'; ‘entomon’



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Molting Process of Dragon Fly



Each stage of development between moults for insects in the taxon endopterygota is called an instar, or stadium, and each stage between moults of insects in the Exopterygota is called a nymph: there may be up to 15 nymphal stages. Endopterygota tend to have only four or five instars. Endopterygotes have more alternatives to moulting, such as expansion of the cuticle and collapse of air sacs to allow growth of internal organs




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