Fig. Model to show mechanism of breathing. The figure shows a plastic bottle whose bottom has been removed. A tube has been passed by making a hole in its lid. To the forked ends of this tube are attached two deflated balloons. The bottle is sealed in such a way that it becomes air-tight. What do we inhale?
A) Oxygen
B) Carbon dioxide
C) A mixture of gases
D) None of these
Correct Answer: C
Solution :
We inhale a mixture of gases.
You need to login to perform this action.
You will be redirected in
3 sec
