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

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 gqby2l1) :yp 3ewkl5 9ho y3tvgroua xp 3.,o +cno hk;;k*xzapsy+p of approximately 18 finches which share a common ancestor and are found on the Galapagos islands. Four of these finches are shown below. oz* x o;;psp+a3xhk.nk+ c,ya


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.

参考答案:

本题详细解析: 暂无

微信扫一扫，分享更方便