Need help with these two question

Why is it important that fibrin is insoluble in water?

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.