Increase blood osmolarity
increase rate of urine production
constrict the glomerulus arteriole
hold back Na+ from excretion
C
Explanation:Only answer where they are trying to protect
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The proof that cells only come from other cells
He proved it by his "swan-necked flasks" in which nothing formed in sealed flask whereas many organisms were there in open flask.
So, in short, option D is your final answer!
Hope this helps!
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