种子中的______是由两性______结合成的受精卵发育而来的，这种由受精卵发育成______的生殖方式就属于有性生殖．-生物

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• 植物由受精卵发育成新个体的生殖方式称为______生殖．-生物
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• It is easy to set the goal of our production for next year, butto achieve it takes a lot of trouble.
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• 一切生命都有生殖发育的能力，以使生命保持连续性，使生物圈多样和多彩，请完成下列有关生殖发育的问题．（1）绿色开花植物通常是用______来繁殖新个体的，属于______的类型；果-生物
• 据图分析，下列有关植物生殖方式的叙述中，不正确的是（）A．①是嫁接，是人工营养繁殖B．①②是无性生殖，③是有性生殖C．①②③均是植物的生殖方式D．③中种子萌发时最先突破种皮的结构是-生物
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• 高等的动植物不能进行无性生殖．______．-生物
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• The terrible earthquake took place early this month ______ three southern countries meet.[ ]A. where
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