The atomic mass of magnesium from the Periodic Table is 24.31 amu. What does this mass represent?

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex

The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed