The diaphragm is the large flat muscle. hope that helps :)
Osmosis is the word your looking for. This answer can also be found on google. This text i found will explain osmosis. Osmosis is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. ... Osmosis is a vital process in biological systems, as biological membranes are semipermeable.
Please mark this as Brainiest
Vacuoles, they ares used for storage and are always larger in plant cells.