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Taking the example of any two animal hormones along with their gland of secretion, explain how these hormones help (i) in growth and development and (ii) regulate metabolism, in the body.
How does chemical coordination take place in animals?
Compare and contrast nervous and hormonal mechanisms for control and coordination in animals.
Name the hormones secreted by the following endocrine glands and specify one function of each (a) Thyroid (b) Pituitary (c) Pancreas
Assertion (A)-at puberty in boys, voice begins to crack and thick hair grows on face. Reason (R)-at puberty, there is decreased secretion of testosterone in boys.
During puberty boys and girls develop distinct physical features known as secondary sexual charecteristics. Identify the hormones responsible for these changes.
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