Then answer is b. Cnidaria
Precipitation needs to happen to keep the water cycle balanced
Diffusion<span> is a spontaneous movement of particles from an area of high concentration to an area of low concentration. ... </span>Osmosis<span> is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution, up a concentration gradient.
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Answer:
1. B
2. B
3. A
Sorry if any of these are wrong