When both water and salt are present in a solution and teh cell needs water, which process enables the cell to obtain the water without the salt -osmosis through a permeable membrane -diffusion through a permeable membrane -osmosis throuhg a semipermeable membrane -diffusion through a nuclear membrane

Osmosis is the movement of water molecules from an area of high concentration of water to an area of low concentration of water across a semipermeable membrane.  In osmosis, only the water molecules cross the membrane, leaving behind solutes such as salt.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

4tghyjuklertghyjukl