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all living creatures on the earth response and controls to change in their environment and our human body having various control system in our human body :-

 - function of nervous system ( to recieve information and messages from body organs and acts as accordingly through muscle glands ) . CNS ( pickup ⇒ fuse & integrate ⇒action ) , PNS ( import informations ) , PNS ( communicate ) . all are consists fixed control system .

 - body temperature and moisture of body organs ( blood consists of water which controls our body temperature and mucus glands controls the moisture of our ingestive organs ) .

- insulin controls suger level ( it promotes body tissues to consume more and more glucose . thereby reduction of blood glucose level and secretion of many harmones .



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