By Reproduce Im sure you mean Sex Organs. On the male it is the penis, on female its the vagina.
Liver
body
Around age either 12 or 13 as this is the age LTS stopped affecting kids
Eyes
I believe that would be the appendix.
Unfortunately, the hand is not a part of the body that regenerates itself. The only part of the body that regenerates naturally is the liver.
pretty much everything; except for the brain, eyes, ears, nose, fingers/ toes, and any thing that came off ( like if you lost your arm in the war or something ). The body repairs itself internally and externally.
the only organ that does not float is the brain
body
Yes - at least I think so. I believe the liver regenerates itself once the damaged parts are removed; like in a transplant.
You are probably thinking of the testes.
kidneys
Around age either 12 or 13 as this is the age LTS stopped affecting kids
Eyes
The eyes....
LIVER