Biology · Oct / Nov 2016 · Paper 21 · Question 1
5090
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Fig. 1.1 shows a model that a student made to represent the human breathing system. drinking straw clay balloon rubber band rubber band rigid plastic cup rubber sheet Fig. 1.1
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1(a)[2]
1(b)[4]
1(c)(i)[2]
1(c)(ii)[1]
1(c)(iii)[3]
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