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Which of the following is a small bottle with a rubber diaphragm that can be punctured by a needle?
Neurotransmitters
Chemical messengers in the brain and nervous system that transmit signals between neurons, influencing various functions including mood, sleep, and appetite.
Chemical Molecules
Groups of atoms bonded together, representing the smallest fundamental units of a chemical compound that can take part in a chemical reaction.
Morphine
A potent opiate analgesic derived from the opium poppy, used medically to relieve severe pain.
Heroin
Heroin is an opioid drug synthesized from morphine that is illegal and has high potential for addiction and dependence.
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