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aqa_biology_paper_3_2022 QP
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Answer all questions in this section. You are advised to spend no more than 1 hour and 15 minutes on this section. Do not write outside the box Guppies are small fish. Female guppies ar... e dull in colour. Male guppies can be bright or dull in colour. Scientists investigated the effect of female brain size on choosing a mate. They used laboratory-bred female guppies with large brains and with small brains. They set up a fish tank as shown in Figure 1. Figure 1 They observed each female for 10 minutes and recorded which male they were attracted towards. They repeated this with 45 large-brained females and 45 small-brained females. [Show More]
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