Answer the questions, properly please, explain why Group c is more at risk

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Which layer will become saturated first when rain falls?

What part of the body contains bile, an enzyme that break down lipids?