天!我家的猫猫喜欢上了邻居家的狗,怎么办?会不会有物种问题?
跟他住人沟通沟通吧,不过一般说来没什么效果,最起码能够让他主人给清理干净吧猫猫不清楚为什么会在你家门口大小便,小猫是很注重隐私的,便便前会自己挖土,然后结束了会在埋起来。至于小狗...
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鸵鸟这个物种为什么会放弃飞行能力?
鸵鸟是一个很古老的家族来自,它们体型巨大,360问答是世界上现在鸟类中体形最大的,最大体长约为3米,最大身高3米唱哥身及众本盾国安,最大体重150公斤。试想一下,如此体重,怎么飞...
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为什么海洋无法进化出高智能物种??
不是没有,是人类对海洋生物的资讯还有待摸索,因为海洋生物太奥秘了。研究学者都还在360问答探索。如:座头鲸是一种地地道道的奇鲸了。它不仅先架外貌奇异、行踪神秘,而且智力出众、“歌...
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西藏为什么外来入侵物种少?
有害生物破坏区域内生态平衡西藏地域辽阔、海拔梯度大、垂直分布显著,形成了生物的多样性。现阶段西藏交通越来越便捷、旅游业的升温、全球经济一体化以及多样的生态系统使西藏容易受到外来入...
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红薯为什么成为不了外来入侵物种
一方面要适应这里的环境,另一方面就算入侵了估计也要被人挖起来吃了,就像小龙虾都快被人吃成濒危物种了
破坏草为什么是外来入侵物种
紫茎泽兰(学名:Eupator领脸家略七染iumcoelestinumL.),360问答又名**草、破坏草、马鹿草、大黑草、花升麻、细升麻[1],为菊科泽兰族泽兰属多年生草本植物...
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如何解决外来物种入侵问题
您是想要长篇大论的复制还是?实际上要防治外来物种入侵,1.加强检疫,主要防止无意引进的物种。2,做好风险评估,主要是针对引进的物种,有错常庆联圆除948项目经常会有一些引进物种每...
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2014巴西世界来自杯主题曲Pitbull《The World is ours》视频中的物种是什么物种,求大神解答
穿山甲(读音:chuanshanjia),又称“铠鼠”,国际足联和巴西世界杯组委会公布了2014巴西世界杯(F况激销卫航基诉IFAWorldCupBr财azil)的吉祥物:犰狳(...
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清道夫为什么是外来物种
外来计想县汉艺早料房坏安物种是指那些出现在其过去或现在的自然分布范围及扩散潜力以外(即在没有直接、间接引入或人类照顾之下而不能分布)的物种、亚种或拿采止厂套粉等节以下的分类单元,...
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为什么秦岭被称为**物种宝库?
秦岭横贯我国中部,西起甘肃临潭县北部白石山,向东经天水南部麦积山进入陕西,在陕西和河南交界处分为三支:北支为崤山,中支为熊耳山,南支为伏牛山,东西长1卷输600千米,南北宽数十千...
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不同物种的种动物杂交问题
不同科和不同纲的动物是不能杂交的,因为它们的染色体完全不同,360问答是无法受精的。狗和狼能,是都属于犬科,狮子和老虎能,是都属于猫科.
达尔文为什么提前发表物种起源?
来自他还乘坐“小猎犬”号进行了一次航行,发表之前必须谨慎。但当时另一位科学家也发现了进化理论,达尔文其实是提前发表了自己理论的纲要《物种起源》主张进化论,这个理论不能凭空产生,需...
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达尔文为什么提前发表物种起源?
因为另外有一位博物学家在一篇**里面也谈到生物进化理论,而且与达尔文的论点非常接近,所以逼着达尔文只好提前发表物种起源。