The diffusion of WATER across a selectively permeable membrane is called

a
equilibrium
b
facilitated diffusion
c
osmosis
d
active transport

c

osmosis

The diffusion of water across a selectively permeable membrane is called osmosis.

The diffusion of WATER across a selectively permeable membrane is called osmosis.

Explanation:
To answer this question, you need to understand the process of diffusion and its relation to osmosis.

Diffusion is the movement of particles from an area of high concentration to an area of low concentration. In other words, it is the process by which particles naturally spread out to fill available space.

Osmosis, on the other hand, is a specific type of diffusion that involves the movement of water molecules across a selectively permeable membrane. A selectively permeable membrane allows certain substances, like water, to pass through while restricting the movement of other particles.

In the given question, the process being described is the diffusion of water across a selectively permeable membrane. This is exactly what osmosis refers to. Therefore, the correct answer is option c: osmosis.