Brain receives and sends the signals in the form of

Electrical signals

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Chemical signals

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Thermal signals

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Mechanical signals

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Solution

The correct option is A
Electrical signals

A signal is transmitted along a nerve fibre. It consists of a wave of electrical depolarization that reverses the resting potential difference across the nerve cell membranes.

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The electrical signals are sent to brain via

______ send signals away from neurons whereas ______ receive signals from other neurons.

The __________ in ear senses the vibrations of sound, it sends the signals to the brain.

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