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osmoregulation i s the maintenance of constant osmotic pressure in fluids of an organism by the control of water and salt concentration
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Ans.3. above picture
Ans.1- Osmoregulation is the process by which an organism regulates the water balance in its body and maintains the homeostasis of the body. Osmoreceptors in the body are activated by changes in blood volume, body fluid volume and ionic concentration.
Ans.2- Every living organism generates waste in its body and has a mechanism to expel it. In humans, the excretory system takes care of waste generation and elimination. It comprises of the following structures:
2 Kidneys
2 Ureters
1 Urinary bladder
1 Urethra
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