Answer: Stem cell research has the potential to treat diseases that are currently burdened with high health care costs—especially chronic conditions such as heart disease, Alzheimer's disease or diabetes, the costs of which threaten to cripple the healthcare system.
Mitochondria! That is why it is called the powerhouse of the cell!
In a dichotomous key you named then by their traits while in a branching diagram it already has the name and it's traits.
There will most likely be a net movement of water into the cell. This is because the concentration of solutes outside the cell is greater than inside the cell