PPT Slide

Class Insecta conít

• Thorax is composed of 3 segments and each one has a pair of legs; the last two segments also have a pair of wings.

• Wings of insects are modified portions of the exoskeleton

• 1st pair is usually tough and leathery and fold over the inner pair for protection.

• Abdomen does not have appendages; terminal portions do harbor the reproductive structures

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