Assimilation is taking place in the liver or any other cell. â¢ In absorption, nutrients are added to the blood stream or lymph, but in assimilation, nutrients are taken out from the blood stream/ lymph. Related posts: 1  Difference Between Mechanical Digestion and Chemical Digestion.
Why Bottled Water Has an Expiration Date. Bottled water may carry an expiration date, but under typical storage conditions it does not go bad. It can grow algae and absorb chemicals from its container that make it taste bad. GNL Media / Getty Images.
Stuff can grow in it. Like viruses and cysts. These can always be removed by chemical treatment and/or the right filter. Bottled water is labeled as good for 2 years. (May vary in some localities) I personally think it is drinkable for much longer than that, at least twice as long. In fact if stored in a dark, cool location I would expect bottled water to last as long as the bottle.