Examlex
Which of the following is not a random variable when flipping a coin?
Acetylcholine
A neurotransmitter in the body involved in various functions including muscle contraction, arousal, and memory.
Acetylcholine
A neurotransmitter involved in many functions including muscle contraction and alertness.
Skeletal Muscles
Type of striated muscle tissue attached to bones, responsible for voluntary movements.
Neurotransmitter
Neurotransmitters are chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.
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