Copper oxide is a compound :) hope this helps.
I would go for B. Production of immune cells
Well for one it helps with where people are allowed to smoke. A law has passed about people smoking in restaurants. It’s no longer allowed.
Answer:
The lactate blood test is primarily ordered to help determine if someone has lactic acidosis, a level of lactate that is high enough to disrupt a person's acid-base (pH) balance. Lactic acidosis is most commonly caused by an inadequate amount of oxygen in cells and tissues.
Explanation:
hope it helps