B is the correct answer because the density it the salts would make the water increase therefore sink faster
Organism is the smallest unit of organization.
Quiet inspiration is _an active process_, and quiet expiration is _a passive process_.
Answer:
The plasma membranebeing the most necessary component of a cell because it encases and protects the complex chemistry of life within the cell. A selectively permeable membrane allows only certain substances to enter the cell. This is very important to keep necessary nutrients in and keeping unwanted substances out too
