insect-structure-01 - The insects ‘skin’ is called the...

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Insect structure and function 1 Insect Structure and Function Insects’ bodies are made up of segments . The segment s are grouped into 3 regions; head (6 segments fused together), thorax (3 segments), and abdomen (11 segments but often not all of these are visible) Each thoracic segment carries a pair of jointed legs. There are no legs on the abdomen. The second and third thoracic segments usually carry a pair of wings. The head has a set of mouthparts, a pair of compound eyes and a pair of antennae.
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Unformatted text preview: The insects ‘skin’ is called the cuticle, the outer layer of which is usually hard and inflexible. The inner, softer layer allows movement between the body segments and the limb joints. The drawing of the cockroach ( Periplaneta americana ) shows the principle features of insects . head compound eye antenna thorax segments fore wing hind wing jointed legs segments of abdomen wings folded when not flying The cockroach ( Periplaneta americana ) Dorsal view © D.G. Mackean...
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This note was uploaded on 11/29/2011 for the course BIO 218 taught by Professor Young during the Fall '11 term at BYU.

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