Biology · Oct / Nov 2023 · Paper 21 · Question 4
5090
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A sneeze can be triggered by dust irritating receptor cells in the lining of the nose or throat. During a sneeze, air is exhaled from the lungs with some force and the eyelids close. air exhaled from nose and mouth Fig. 4.1
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4(a)(i)[4]
4(a)(ii)[2]
4(b)(i)[2]
4(b)(ii)[2]
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