why do organisms need water ?
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- Organisms need water because: (i) Cellular processes need water for their functioning. (ii) Substances dissolve in water for reactions to take place within the cells....(iv) Water helps in digestion of food and its absorption in the blood. (v) It helps to maintain body temperature.
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Organisms need water for the following activities: (1) All cellular processes occur due to water. (2) Transportation of substances in our body takes place by dissolving in water. (3) Terrestrial animals require fresh water for transportation of minerals and for getting rid of waste from their body.
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