Q : 1 Why do organisms need water?
Organisms need water for the following activities:
(1) All chemical reaction at the cellular level occurs with water as the solvent.
(2) Water acts as a medium for the transportation of substances in our body.
(3) Terrestrial animals require fresh water for the intake of minerals
(4) Water is required to get rid of waste from the body in the form of sweat and urine.
(5) Water is essential for photosynthesis