............... (19) is the vital link between blood and tissues by which essential substances pass from blood to cells and excretory substances from cells to blood. So it is called ............. (20) of our body.
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............... (19) is the vital link between blood and tissues by which essential substances pass from blood to cells and excretory substances from cells to blood. So it is called ............. (20) of our body.
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Answer:
(19) LYMPH
(20) POSTMAN
Explanation:
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Answer:
(19) Lymph,
(20) middle man
Explanation:
Thus (19) Lymph, (20) middle man.