What is the effect a nervous system disorder to the respiratory system?

a.) it could restrict air flow through the bronchi.
b.) it could disrupt the rate of ventilation.
c.) it could prevent hemoglobin from binding to oxygen.
d.) it could decrease the surface area of alveolar sacs.

sorry, but you do not have posted the diagram.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.