The village is ______what it looked like when they settled their homes there 20 years ago.[ ]A. not

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• 在有性生殖过程中，______和______就是基因在亲子间传递的“桥梁”．-生物
• 下列生殖方式中属于有性生殖的是（）A．用青萝卜的根尖组织培育出萝卜幼苗B．将家兔的乳腺细胞核融合到乙兔的去核卵细胞中，由该细胞发育成新个体C．马铃薯的块茎发芽生根，进而发-生物
• 若图是被子植物番茄花的部分结构示意图，请据图回答：（1）番茄一般用种子繁殖后代，这种生殖方式属于______生殖．（2）①、②、③合称______，它属于花的主要部分．（3）受精作用完成后-生物
• 下列属于有性生殖的是（）A．草履虫的分裂生殖B．酵母菌的出芽生殖C．病毒的增殖D．小麦用种子繁殖-生物
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• 家蚕是通过有性生殖繁殖后代的，其特点是；（）A．有精子和卵细胞融合的过程B．由卵细胞直接发育成新个体C．雌雄同体，异体受精D．雌雄同体，自体受精-生物
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• 下列属于有性生殖的是（）A．椒草的叶片长成新植株B．马铃薯块茎发芽生根C．桃树种子的胚发育成新植株D．竹地下茎节上的芽长成新的竹子-生物
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• 下列花卉繁殖方式，属于有性生殖的是（）A．用叶繁殖秋海棠B．用茎繁殖月季C．用种子繁殖金钱橘D．用组织培养繁殖君子兰-生物
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• 植物个体发育的顺序是（）A．受精卵→胚乳→植株B．受精卵→胚→植株C．胚→胚乳→植株D．胚乳→胚→植株-生物
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