This means having no charge
They were adapted to an environment and once it is taken away the plants will slowly start to die. I'm not 100% :)
Because it takes LOADS of feathers to make up 1kg and lead would be such a small amount, it could fit in a purse.
In mitosis (regular cell division)
the cell (mother cell) duplicates it's DNA and aligns it down the center of the cell, so that when it splits each new cell (daughter cell) gets the exact DNA as the mother cell