Answer:
The correct answer will be-
1. Sensory neurons
2. Interneurons
3. Motor neurons
Explanation:
The neurons are the building blocks of the nervous system which transmits the signals in the form of electrical impulse.
The neurons can be categorized on the basis of their functions into three types:
1. Sensory neuron- The neuron which transmits the signals from the sense organs of the body to the central nervous system.
2. Interneurons- The neuron which connects the sensory neuron to the motor neuron by interpreting the signals from the sensory neurons.
3. Motor neuron- the neuron which transmits the signal from the central nervous system to the muscles and causes the movement of the muscles.
Therefore they are known as polypeptides.
The answer would be genes.
