Topic: Food Energy and Respiration Subtopic: Making the air moist, warm and clean
Why we should not breathe through mouth?
Answer: Mouth does not contain mucus, blood vessels near the surface or hair that could trap the dust particles or germs.
- What is chance of smokers of dying from bronchitis?
- What is size of white blood cell?
- Which enzyme acts on food in stomach?
- Why are walls of left ventricle stronger?
- Whah happens in diarrhea and when it stops?
- What is diarrhea?