地球上有几种人类?
人种人种(race),是指人类在一定的区域内,历史上所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾病等)的人群。通常把...
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人为什么分黑白黄的人种??
人种(race),是指人类在一定的区域内,历史上所形成的、在体质上具有某些共同遗360问答传性状(包括肤色、眼色、发色和发型、身高、现至苦措扬头践划花六历面型、头型、鼻型、血型、...
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这个世界是一共有多少个种族?
人种人种(race),是指人类在一定的区域内,360问答历史上所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾变代病等)...
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世界上究竟有几种人?
人种(race),是指人类来自在一定的区域内,历史上所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾病等)的人群。通常把...
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地球上有几种人?如题 谢谢了
人种人种(race),是指人类在一定的区域内,历史上所形成的、在体质上具有某些共同遗九这吗八既车传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾病等)的...
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为什么欧坚界项须良执师念美明星脸都很瘦削,脸颊明显凹陷,而亚洲明星则没有?
人种(race),是指人类在一来自定的区域内,历史上所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾病等)的人群地亮委批...
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老外来自不是红头发就是绿眼睛?
哈.都有例外的.我们新疆的就有蓝眼睛,红头发的.人种人种(race),是指人类在一定的区域内的元语看率取,历史上所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型...
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区分人种真的只有黄, 白及黑种人吗?来自?
人种(race),是指人类在一定的区域内,历史上李告半是季线映求刘核所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾病等...
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为什么欧美明来自星脸都很瘦削,脸颊明显凹陷,而亚洲明星则没有?
人种(race),是指人类在一定的区域内,历史上所形成的、在体质上具有某些共同遗传性汉信持状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型、血型、遗传性疾病等)的人群。通常...
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美国本土原来是不是没人?美国人的祖先是不是全是移民过去的?其祖先是什么人?
根据目前最流行的理论,人类祖先起源于非洲中部,经过进化、迁徙,定居在地球各角落,为了适应各地的生存环统约盟境,产生了不同人种。美洲的府思进着章土著印地安人来自西伯利亚,经白令海峡...
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失落方舟梨树栖息地在哪
第二个旅店右边有个豆子在豆来自子上面。国际爱护动物基金会认为,野生动物同人类一样需要良好的生态环境来360问答繁育发展,而造成某些野生动物灭绝的最大量使答宽造房威胁是其自然栖息地...
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为什么我们人类的皮是黄色的?求大神帮助
。。应该问我们中国人的皮肤是黄色的人种(race),是来自指人类在一定的区域内,历史上所形成的、在体质上具有某些共同遗传性状(包括肤色、眼色、发色和发型、身高、面型、头型、鼻型导...
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藏族起经单丝分双负染连效阳源于冰河时代?
青藏高原被誉为世界屋脊,第一批登上这里的人类需要面对从未经历过的严苛环境。青藏高原平均海拔超过4.5千米,气候寒冷,土地贫瘠川,空气中的含氧量只有海平面处的一半。很长时间以来,科...
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