The answer is A it's the action of purifying water
B white blood cells function as your immune systems body guards. Osmosis Jones is a great movie to watch in order to learn more about it :)
If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.
Answer:
A.
half of its genetic material from each parent.
Things going from low concentration to high concentration with ATP. An example would be the sodium potassium pump
