The correct answer is the fourth option. The nervous system is the system in the body which can be affected by ionizing radiation. Exposure to this kind of radiation may lead to changes in motor function or neurological disorders.
Heated mater rises and cold mater sinks
Anatomy I think it's important to know anatomy as a young adult so u are self aware of your body
A=P +N
A=13+14
A=27 this the answer