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.
- What are enzymes?
- What is cough?
- What happens if excess lactic acid is produced?
- What are xylem and phloem?
- How many types of pollination are there?
- What is cell sap?