Final answer:
Diffusion and osmosis are processes that involve the movement of molecules across a membrane. Examples of diffusion include the movement of substances through cell membranes and skin. Osmosis is a specific type of diffusion that involves the movement of water.
Step-by-step explanation:
Osmosis and diffusion are related processes that involve the movement of molecules across a membrane. Examples of diffusion include the movement of oxygen and carbon dioxide through cell membranes, as well as the movement of substances through your skin, such as water diffusing when you soak a swollen ankle in Epsom salt.
Osmosis, on the other hand, is a specific type of diffusion that involves the movement of water from an area of high water concentration to an area of low water concentration through a semi-permeable membrane.