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Which is the correct option regarding hormones in humans? i) All hormones cause increased heartbeat ii) Hormones are produced in one part of organism and show desired effect in another part iii) They use electrical impulses to transmit messages iv) They are regulated by feedback mechanism |
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Answer» Which is the correct option regarding hormones in humans? ii) Hormones are produced in one part of organism and show desired effect in another part iii) They use electrical impulses to transmit messages iv) They are regulated by feedback mechanism |
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