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9. Define hormones'. Name the hormone secreted by thyroid. Write its function. Why is the use ofiodised salt advised to us?

Answer»

Hormones are the chemical substance which are grow in animals as well as in plant also.Hormones which is secreted by thyroid gland is thyroxine hormones and it's function is to control the metabolism rate of breathing, heart beat etc.

Doctor are advised to use iodised salt because the iodine is needed to thyroid gland to secret the thyroxine hormones.



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