Question

Whats the answer to the question i dont understand

Answer 1

I think the answer is B

Step-by-step explanation:

the answer is B because it shows the molecules moving

Answer 2

The answer should be C. The image shows molecules of dye moving across a partially permeable membrane down a concentration gradient. A is used to describe movement of water molecules down a concentration gradient. B is often used to describe facilitated transport, aka protein mediated transport of substances down a concentration gradient. D would be referring to the movement of molecules against the concentration gradient which is not the case here.