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動物的生殖方式主要可以分成兩種： 胎生和卵生。 🐣 一、卵生動物 卵生動物會「下蛋」，寶寶會在蛋裡慢慢發育，等長大後才孵化出來。 蛋裡面有卵黃 Template






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tomski動物的生殖方式主要可以分成兩種： 胎生和卵生。 🐣 coloring
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题目下面是与动物生殖和育有关的示意图请据图回答下列问题1图示的三种生殖育方式中属于变态育的有图 和图 2图乙表示鸟卵的 sketch template
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题目如图为部分生物的生殖育示意图请据图分析回答1ABC反映的动物的某种育方式是 其中图B育经历了四个阶段比图A多了 sketch template
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有性生殖和无性生殖的根本区别是 A．无性生殖就是产生没有性别的生殖细胞 孢子B．进行无性生殖的生物不能产生有性生殖细胞C．有性生殖过程中 sketch template
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下列为同学们熟悉的三种动物请你观察后回答1A图为家蚕其生殖方式是卵生卵生育特点是完全变态育完全变态育其过程是卵幼虫蛹和成 sketch template
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鸟类的生殖方式是 A．雌雄同体体外受精卵生 B．雌雄同体体内受精卵生 C．雌雄异体体外受精卵生D．雌雄异体体内受精卵生 sketch template
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题目下图为部分生物的生殖育示意图请据图分析回答1观察AB的育过程可以看出它们在由 育成新个体的过程中B育过程多了 sketch template
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鸟类的生殖方式是 A．雌雄同体体外受精卵生B．雌雄同体体内受精卵生C．雌雄异体体外受精卵生D．雌雄异体体内受精卵生——青夏 sketch template
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12．图一表示正在进行胚胎育的鸽卵图二表示家兔的胚胎育请回答1家鸽和家兔的生殖方式都属于有性生殖．21是胚胎它由鸽卵 sketch template
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与无性生殖相比有性生殖是一种更高级的生殖方式这是因为自从自然界出现了有性生殖后生物展进化的速度大大加快这主要是因为有性生殖 sketch template
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与无性生殖相比有性生殖是一种更高级的生殖方式这是因为自从自然界出现了有性生殖后生物展进化的速度大大加快这主要是因为有性生殖 sketch template
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鸟类的生殖方式是A．卵生体内受精B．卵生体外受精C．胎生体外受精D．胎生体内受精——青夏教育精英家教—— sketch template
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2．水螅的生殖方式是 A．出芽生殖B．孢子生殖C．有性生殖D．分裂生殖——青夏教育精英家教—— sketch template
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下列生物的生殖方式哪一组属于无性生殖 水螅的出芽生殖豌豆的种子繁殖月季的扦插繁殖鱼的受精卵繁殖细菌的分裂生殖鸡蛋孵化出小鸡．A sketch template
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无性真菌孢子 sketch template
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由受精卵育成新个体的生殖方式叫有性生殖不经过两性生殖细胞结合由母体育成新个体的生殖方式叫无性生殖． 题目和参考答案——青夏教育精英家教—— sketch template
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动物生殖系统的结合一般由 和 组成其演化过程是由 到 由 ——青夏教育精英家教—— sketch template
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青蛙的育1 写出图7 1 3 1中各序号所代表的名称 2 育过程3 育方式 育——青夏教育精英 sketch template
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生物的生殖和育是生的基本特征之一它维持了种族的延续从而使地球上的生物生生不息请仔细观察图回答问题 内填数字 上填结构名称 sketch template