Question

What is the role of a kidney during secretion?

Answer 1

the kidney filters the blood and water .

there are millions of nephrons present in it which help in this

Hope it helps you friend .
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Answer 2

The major function of these lining cells are the reabsorption of water and small molecules from filtrate into the blood and the secretion of wastes from the blood into the kidney . proper function of the kidney requires that it receive adequately filters blood.