Exposure to high doses of microwaves can cause damage to humans. a. calculate the energy (in joules) of a single microwave photon with 

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

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

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