It is because they lose body temperature
I believe the correct answer from the choices listed above is option B. It would be the respiratory and circulatory systems that <span>work together to get cells the nutrients they need to carry out cellular respiration. They are responsible in providing oxygen and other nutrients throughout the body.</span>
<span>When iron reacts with oxygen, it forms iron oxide, or rust. 4 Fe + 3 O2 2 Fe2O3 If 112 g of iron (Fe) combines with 24 g of oxygen (O2), </span>136g of iron oxide will be produced.
