Well apart from the liver and heart you do have two of each organ.
The two magnets would repell each other.
nothing?
nothing
People would bump into each other and jostle each other, and hopefully laugh about it.
You would have a black hole the size of the combined mass of the two black holes.
It is important because each system does a cetain job for that organ.
They will repel as like charges repel each other.
an earthquake happens
The image of the tree would probably be bigger if the pin hole camera had two pinholes close to each other.
organ
They would either come togrther or repell apart
they wont stick