Question

12. Is there any partition between the root hair and
the cell to which it is attached?
1
13. What is the total area for gaseous exchange in
lungs of normal adult man ?
14. What is the vital capacity of lungs?
15. Which organelle serves the function of excretion
and osmoregulation in Amoeba?​

Answer 1

Answer:

5liters

Explanation:

Gas exchange occurs in the alveoli, which are single cell structures in the terminal portions of the lung. To move oxygen to the tissues, the entire blood volume (approximately 5 liters) passes through the lung each minute

answer is for 14.

Contractile vacuole helps in the process of excretion and osmoregulation in Amoeba.@15th answer.