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春天气候转暖青蛙进行繁殖试分析青蛙的繁殖行为1雄蛙在水边高声鸣叫这是 行为2雄蛀和雌蛙报对后雌蛙将卵排到水中雄蛙也将精子 Template






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tomski春天气候转暖青蛙进行繁殖试分析青蛙的繁殖行为1雄蛙在水边高声鸣叫这是 行为2雄蛀和雌蛙报对后雌蛙将卵排到水中雄蛙也将精子 coloring
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2．根据图示描述青蛙的生殖与育过程回答下列问题 1每年春季雌雄蛙抱对后雌蛙将卵细胞排到水中雄蛙接着将精子排到水中卵细胞和精子 sketch template
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春天气候转暖青蛙进行繁殖试分析青蛙的繁殖行为1雄蛙在水边高声鸣叫这是 行为2雄蛀和雌蛙报对后雌蛙将卵排到水中雄蛙也将精子 sketch template
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