MediumZoologyChemical Coordination & Integration
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Which hormone regulates the 24-hour (diurnal) rhythm of our body?
A
Melatonin
B
Thyroxine
C
Adrenaline
D
Cortisol
Explanation
Melatonin, secreted by the pineal gland, helps in maintaining the normal rhythms of sleep-wake cycle, body temperature, etc.
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