Q22 of 63 Page 7

What are hormones?

Any chemical substance which is formed in the tissues of endocrine glands and are carried by the blood to other parts of the body for its specific actions is termed is hormone.

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20 What is coordination? 21 Why is the response of a plant to a stimulus not observed immediately? 23 What are phytohormones? 24 What are meanings? What are their functions? Name the fluid, which is filled in between meanings.