In the kidney, the structures that filter the blood are the a. neurons b. bile ducts c. nephrons d. ureters

In the kidney, the structures that filter the blood are the nephrons. Correct C

These microscopic structural and functional units are used separate to water, ions and small molecules from the blood and are responsible for  filtering the wastes and toxins, and return of the  needed molecules to the blood.

answer; i believe that the correct answer is (essential amino acids);

answer; /// i believe the answer is (sterilization ) plz check first.good luck