Answer:
It is impossible for a negative stain to colorize the cells in the smear because the chromogen of the negative stain carries a negative charge and is repelled as a result of the negative charge present on the surface of the cell. In this light, the stain can only colorize the background, thus permitting visibility of the capsule and the cell.
Explanation:
The answer is Sodium Fluoride
Here is a link that can help you.
http://study.com/academy/lesson/what-is-an-organ-system-definition-pictures-quiz.html
So if you take the 12 hours that it takes to fill the swimming pool 3/5 way then u divide 12 by 3 and you would get 4 which would mean each quarter took 4 hours then it would take 8 more hours to fill the rest of the swimming pool
Respiratory system and the cardiovascular system
