Topic: Food Energy and Respiration Subtopic: How we breathe?
What is diaphragm?
Answer: A diaphragm is a tough, dome-shaped sheet of muscles across the bottom of the chest. It helps to make the chest into an air tight box.
- Why should tissue paper or handkerchief used?
- How does large trees take up water?
- What is wilting?
- Where are red blood cells made?
- What are initial effects of tobacco smoke?
- What are harmful effects of carbon dioxide?