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There are three isotopes of oxygen 16O,17O and 18O.Indicate the number of different types of isotopically substituted diatomic oxygen.
Pineal Gland
A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.
Melatonin
A hormone produced by the pineal gland that regulates sleep and wakefulness.
Melatonin
A substance secreted by the pineal gland that controls the patterns of sleeping and waking.
Dopamine
A neurotransmitter associated with pleasure, movement, and attention in the brain.
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