Depends. Probably his hunger or how much he cares about that person. You only need one kidney to survive..
Renal veins take blood away from the kidneys and renal arteries bring blood to the kidneys
Renal arteries take oxygenated blood to the kidneys and the renal veins take deoxygenated blood away from the kidneys.
By drinking lots of water to filter your kidneys and it can give you less risk of infections and bacteria
Kidneys
you take a jack and jack it up.
Cellular wastes.
80/0/
diuretic
Kidneys, Lungs and Heart Take your pick-stomach, heart, liver, intestines, lungs, kidneys, brain etc...
Jack says "sharpen the stick at both ends" in William Golding's novel "Lord of the Flies" as a symbolic way to show his willingness to be prepared for any threat or danger, both physically and mentally. It reflects Jack's aggressive and strategic approach to survival on the island, emphasizing his desire to always be ready and take control of the situation.
Kidneys
The antidiuretic hormone is produced and the kidneys take blood and waste and get water to maintain the balance.