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Reference chapter

Question 4
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BREATHING IN THE AIR : THE LUNGS

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Question 4

The results below show the volumes of the lungs of various mammals compared to their body masses.

 

Mammal

Body Mass
/kg

Volume of the lungs
/dm3

Rabbit

2,00

0,20

Raccoon

10,00

1,00

Goat

40,00

4,00

Pig

80,00

6,50

Human

60,00

5,00

Dog

20,00

2,00

Porpoise

100,00

10,00

 

1. Use the graph paper below to plot these results. Remember to label your axes. The vertical axis represents the lung volume /dm3and the horizontal axis represents the body mass /kg.

Graph paper

2. What do you observe when you compare these animals of different sizes and their lung volumes?

 

 

 

 

3. The badger has a body mass of about 12kg. What would you expect its lung volume to be?

 

 

 

 

 

 

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