Question

Which of these describes one of the functions of the nervous system?

a)providing the cells of the body with energy
b)sensing changes in the external environment
c)removing waste materials from the body
d)transporting nutrients throughout the body

Answer 1

A) neurons in the brain are communitive via and has an electrical impulse and is neurotransmitters specialized cells known as neurons transmits signals to different parts of the body

Answer 2

The correct answer in your case would be B - sensing changes in the external environment. Our sensory apparatus ( our eyes, nose, taste, hearing) all help and contribute towards the detection of changes that could be found in the external environment. All of these changes get transmitted and processed in the brain and nervous system in general.