They survive without water by entering a special mode, otherwise called as shriveling. They can lose even 95% of water in their body and still live, even though they would look like dead plants, they would actually be alive. In the absence of water, tardigrades use a sugar called trehalose, which becomes their source of life until they find some water.
The third answer because I was taught this information
Answer:
The human system is a complicated living organism that is structured of internal and external organs and fluids. It has the heart, liver, kidneys, stomach, large and small intestines, brain, and skin.
Understand the world around us.
