I need help with this

Why is it important that fibrin is insoluble in water?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.