Question

nervous system
what is the charge of the electrical signals sent from the stimuli?
negative
neutral
positive

Explanation:

Neurons in the nervous system send electrical signals called action - potentials. These signals are characterized by a change in electrical charge across the neuron membrane. At rest, a neuron has a negative charge inside relative to the outside. When an electrical signal (action - potential) is generated, there is a rapid influx of positive ions, making the inside of the neuron briefly positive. But overall, the electrical signals are associated with a net negative charge in the context of the resting and overall electrical state of neurons.

Answer:

negative