62. How does a Unicellular Organism reproduce? A.Cell division B.Cell reproduction C.Cell synthesis D.Fragmentation
Answer: Option A Solution: Mucus has a pretty important job — it keeps the lining of your nose moist and warms the air you breathe. Mucus also protects the lungs. When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs, and pollen.
