Answer:
atomic number is 4 and neutron is 12
The answer could be any of the following:
* energy
* sugar
* carbohydrates
* (possibly even) food.
The human body is made up of 11 systems of organs.
The systems are: Circulatory, respiratory, digestive, excretory, nervous, endocrine, immune, integumentary, skeletal, muscle, and reproductive.
