Question

Q2. In an experiment to demonstrate the mechanism of breathing by using a belljar,
two balloons in the bell jar and rubber sheet tied to the open end of bell jar
glass tube
a) What does the space in the bell
jar represent?
bell jar
b) What do the balloons in the bell
jar represent?
balloon
air space
c) What does the rubber sheet tied
over the open end of bell jar
rubber sheet
-​

Answer 1

Answer:

a.thoracic cavity

b.lungs

c.to create a low pressure area