Biology Instinct Insects are neumer bulge out invertebrate animals that belong in the Phylum Arthropoda and Class Insecta. The class Insecta is shared out into 2 subclasses: Apterygota, or wingless insects, and Pterygota, or winged insects. Subclass Pterygota is futher divided up on basis of metamorphosis. Insects that have bearne incomplete metamorphosis are the Exopterygota. Insects that undergo complete metamorphosis are the Endopterygota. Insects have an outside two-sided exoskeleton to which the muscles are attached to and provides protection for internal organs.
The system is divided into 3 main parts which are the head, which intromit mouthparts, eyes, and antennae; thorax, which croak the jointed legs and /or wings; and abdomen, which has organs for digested food, reproducing, and begin outting resign of waste products. The major systems in insects are the circulatory, respiratory, nervous, muscular, dige...If you fatality to get a full essay, order it on our website:
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