本题目来源于试卷: Continuity and Change D.7 Reproduction,类别为 IB生物学
[单选题]
Flowers produce male gametesxi5r b64xd0s*v-bz n q h0k;aq, known as polle + ;pp +cxh0ckf)ed;+8 k(dfnzj/cwlen, and female gametes, called ova. The diagram below shows an animal-pollinated flower.nfp k8e;p ddf; xz+( c+w)+hcc e0l/jk
Which row correctly matches the gametes with the structure that produces them?
A. Pollen is Anther;Ovum is Ovule
B. Pollen is Anther;Ovum is Stigma
C. Pollen is Filament;Ovum is Ovule
D. Pollen is Filament;Ovum is Style
参考答案: A
本题详细解析:
Choice A is correct because pollen is produced by the anther and the ovum (plural: ova) is produced by the ovule, found inside the ovary. Choice B is incorrect because the stigma is where pollen lands. Choice C is incorrect because the filament supports the anther and does not produce pollen. Choice D is incorrect because the filament supports the anther and the style is the part of the flower that the pollen passes through.
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