The insect outer skeleton, the cuticle, is made up of two layers: the
epicuticle, which is a thin and waxy water resistant outer layer and contains no
chitin, and a lower layer called the
procuticle.
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Insect - Wikipedia, the free encyclopedia ground plan for pterygotes, confusion reigns: adult Protura have 12 segments, Collembola have 6. The orthopteran family Acrididae has 11 segments, and a fossil specimen of Zoraptera has a 10-segmented abdomen. [ 32 ]
Exoskeleton [ edit ]
<span>The insect outer skeleton, the cuticle, is made up of two layers: the epicuticle , which is a thin and waxy water resistant outer layer and contains no chitin , and a lower layer called the procuticle . The procuticle is chitinous and much thicker than the epicuticle and has two layers: an outer layer known as the exocuticle and an inner layer known as the endocuticle. The tough and fle Summary
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