Question

Diffusion ________.

a. occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated
b. is the result of an energy transformation requires an input of cellular energy proceeds until a dynamic equilibrium is reached

Answer 1

a. occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated

Step-by-step explanation:

Diffusion is the net migration of particles such as molecules

ions, or atom from a region where it is highly concentrated to a lower concentration region. Diffusion is initiated by a concentration gradient. An instance is the existence of a concentration of particles of perfume at one end of a room which eventually spreads across the room.