Answer: Option D
Explanation:
Phosphorus assists in energy metabolism.
It helps in the usage and storage of energy in the body. Also, whenever, phosphorus levels in the blood get too low energy levels tend to drop. This could lead to weakness in the muscles and fatigue
The neuron releases chemical messengers. Otherwise, there would be no 'signal transduction' in the postsynaptic cell. So, your answer is B.
I think it is C, but I could be wrong because I am taking an educated guess.
It is just called: a simple fracture. BUT when the bone does pierce the skin it's called a compound fracture. <span />
