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Let f be a scalar field. Determine whether the expression is meaningful. If so, state whether the expression represents a scalar field or a vector field.
curl f
Neurons
Specialized cells in the nervous system that transmit information through electrical and chemical signals.
Dendrites
Branchlike extensions of neurons that receive signals from other neurons.
Neurotransmitter
Chemical substances in the brain that transmit signals from one neuron to another, playing key roles in brain function and behavior.
Depression
A mood disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.
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