Explain why all the carbon dioxide concentration readings for area B are higher than for area A.
- Edexcel - GCSE Biology - Question 3 - 2011 - Paper 1
Question 3
Explain why all the carbon dioxide concentration readings for area B are higher than for area A.
Worked Solution & Example Answer:Explain why all the carbon dioxide concentration readings for area B are higher than for area A.
- Edexcel - GCSE Biology - Question 3 - 2011 - Paper 1
Step 1
Not all of the plant material / mouse is eaten by the mouse / snake
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Answer
This means that some of the carbon-rich plant material remains in area B, which can contribute to higher carbon dioxide levels.
Step 2
Mouse respires / movement
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Answer
Mice in area B are likely to be more active, respiring more and thus releasing more carbon dioxide into the environment.
Step 3
Mouse excretes / some plant material not digested
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Answer
The mouse excretes some of the undigested plant material, which can decompose and release further carbon dioxide in area B.
