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Why do organisms need water?
 
Organism need water due to the following: 
  • In a water medium, all cellular functions take place.
  • All chemical processes in our bodies and cells occur between .
  • Dissolved substances are also transferred from one portion of the body to another.
  • Water accounts for over of the bodyweight of all living species.
  • It helps digestion and nutrition absorption in the bloodstream. As a result, organisms must maintain a constant quantity of water in their bodies to stay alive. It helps the body's regulation.