I believe the correct response is A. Wax which is made out of atoms that share electrons equally. Waxes being examples of lipids are primarily long chains of hydrocarbons consisting of carbon and hydrogen. And unlike polar and ionic substances, water molecules can not dissolve by attracting these fixed structures with equal electron densities to their respective partial charges.
The kidneys filter blood through a two-step process. Blood first enters a filter called the glomerulus, where excess fluid and waste products are redirected into the second area of filtration, known as the tubule. The tubule extracts any needed minerals that make it through the first filter and sends them back into the bloodstream, while the final product emerges from the tubule as urine.
The proton is the positively charged sub-atomic particle in the nucleus of an atom and the electron is the negatively charged P for positive.