Answer:
1: if they cannot get enough water they will use techniques to protect themselves and conserve water.
2: Vacuole is a cell organelle which contains mainly water while lysosomes also cell organelle and are regarded as suicid bags by function. Vacuoles stores the undigested nutrients while the Lysosomes are the membrane bound sacs containing digestive enzymes that breaks down large molecules.
3: No, a single cell can carry out its functions independently but cannot survive or be sustained on its own because it needs help from the other cells from the multicellular organism to function properly.
Step-by-step explanation: