The stage of the cycle when cells are not undergoing mitosis is ____________During this phase, individual ____fare/are not) visible with in the nucleus of the cell. Whish of the following factors increase the rate of diffusion of a substance? (Check all that apply) ______a. decreased temperature ________b decreased viscosity of the solvent ________c. Increased molecular weight of the substance______ d. increased permeability of the membrane. When a red blood cell is pieced in a hypertonic solution, which of the following may occur? (Check el that apply.) _______a. crenation ________b. intracellular volume will decrease ________c. intracellular volume will increase _____d. lysis.