Why do organisms need water ?
Organisms need water due to the following (i) All cellular processes take place in a water medium. (ii) All the reactions that take place within our body and within the cells occur between substances that are dissolved in water. (iii) Substances are also transported from one part of the body to the other in a dissolved form. (iv) Water makes up about 70% of body weight Of all living organisms. (v) It helps in the digestion of food and absorption of nutrients in the blood. Hence, organisms need to maintain the level of water within their bodies in order to stay alive. It helps in maintaining body temperature
