Topic: Food Energy and Respiration Subtopic: Diseases of the respiratory system
How flu virus enters?
Answer: Flu virus enters from mouth, nose or eyes and make their way towards the throat. When these viruses reach the throat they start to multiply moving towards the lungs.
- What are vitamins and functions?
- What if cough is vigorous?
- Why are circulatory disease harmful?
- What is an artificial pacemaker?
- Where is digestive food transported?
- What are initial effects of tobacco smoke?