Answer: Renal artery
Explanation: The renal artery is one of the large blood vessels that arise from the abdominal aorta (the abdominal part of the large artery leading from the heart) and enter into each kidney. Hence, the blood coming from the heart reach the kidney through the renal artery. Therefore, occlusion of the renal artery by blood clot will affect only the kidney.
Answer:
A leech is sometimes used to stop a blood clot.
Explanation:
This is my answer because leeches suck our blood so when a blood clot appears ( a gelatinous mass of fibrin and blood cells formed by the coagulation of blood ) they can fix it by sucking our blood.