I am secretions of endocrine glands. Chemically I maybe steroids, proteins or amino acid derivatives. I am transported by blood to the reaction site. I may accelerate or inhibit specific activity. My action may be slow or quick Who am I?
A
Hormone
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B
Digestive juice
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C
Enzyme
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D
Water
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Solution
The correct option is A Hormone Hormone is a regulatory substance produced in an organism by glands and transported in tissue fluids such as blood to stimulate specific cells or tissues into action.