Question

Progress Check
1. State the function of epiglottis.
2. Why do the walls of trachea not collapse when there is less air in it?
3. Name the membranes which cover the lungs.
4. What happens to carbon dioxide which collects in human tissues?
5. Distinguish between breathing and respiration.
6. Draw respiratory system in human beings.
7. Describe the mechanism of breathing in human beings.
8. Distinguish between aerobic respiration and anaerobic respiration.
9. Why is gaseous exchange not possible in multicellular organisms
through diffusion alone ?
10. Why do we get muscular cramps after heavy exercise ?
11. Why does lime water turn milky when air is blown into it?
12. What are stomata and lenticels ? What is their role in respiration ? please anser fastly needed and correct​

Answer 1

Answer:

sorry very big question. I can't understand. sorryyyy