Organ donation for scientific purposes after death – is there always something left over?

If one wishes to make one's own body available to science after death, the question arises whether everything will be used or whether there is a biological part that will then remain "left over". Assuming that is the case, what happens to it? Is this physical part "disposed of" or does cremation with urn burial…

Hamster cremation?

Hey, I have a question for you. Do you think it's okay to cremate a hamster? Unfortunately, my hamster passed away on Wednesday. He was already very old, and I personally wouldn't be able to just bury him anywhere, especially since it's a criminal offense. And I definitely won't throw him in the trash because…