Gravity causes the sperm to come back out. Just think of it as trying to drink somethin while you are upside down, it will want to come out of your nose instead of going into your stomach.
It will just sit there unless you request it back
The roots suck up the water and distributes it through out the plant using their veins in the leaves, use food coloring and watch it go through the process
Their sense of humor
Salt Water, it rusts a lot faster
