Biology · May / June 2022 · Paper 22 · Question 2
5090
As printed in the paper
The question as text
The diagram shows apparatus used to study breathing. pen tube to mouthpiece air to and from person substance M upper box containing air revolving drum water
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
2(a)(i)[1]
2(a)(ii)[3]
2(a)(iii)[1]
2(b)(i)[3]
2(b)(ii)[1]
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