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Continuity and Change D.10 Natural Selection (id: 50bce88ab)

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admin 发表于 2025-12-26 12:43:15 | 显示全部楼层 |阅读模式
本题目来源于试卷: Continuity and Change D.10 Natural Selection,类别为 IB生物学

[问答题]
Darwin’s finches are a group of bgiww/+0ls, rj .ryl* approximately 18 finche)kkbk g5wf:p *vszt6 3p8(u fus which share a common ancestor and are found on the Galapagos islands. Four of these finches au 5sw *gff6kpp3:v (bkt)8ukzre shown below.


1.1.Explain the differences in beak shape and size shown in the four individuals A, B, C, D.

1.2.State two possible causes of genetic variation between finches found on the same island.

1.3.Discuss the hypothesis that the finches found on different islands are different species.

2.Species tend to produce more offspring than their environment can support. Explain how this contributes to natural selection.




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