Topic: Food Energy and Respiration Subtopic: Diseases of the respiratory system
What are first symptoms of flu?
Answer: The first common symptoms of flu are three i.e. runny nose, sore throat and cough. If not treated at an early stage the symptoms can get stronger and stronger.
- What happen when we exhale?
- Which blood vessel carries blood and where?
- What are petals?
- How does air enter our lungs?
- Why does constipation occur?
- Why is transpiration important?