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 is disadvantage of self-pollination?
- How does content diffuse into cells from blood?
- What is cell sap?
- What if cough is vigorous?
- What is fertilization?
- What is job of xylem?