科学种植的好处带给我们带来的好处

我不会的科学题1.写出一种生物与它生活的环境相适应的身体特征.2.细菌和病毒对人类的益处.3.电磁铁有哪些用途?4.生物质能的开发利用包括哪两个方面?5.新能源的开发和利用将给我们带来哪些好处?6.说说你在生活中发现的浪费电的现象.7.月相的变化是怎样形成的?
尐洃1优嶽p
1.鸟类的气囊,长骨,羽毛等适应飞行环境.2.肠道有很多细菌促进人的消化吸收,还能产生人体所需的维生素等,病毒.难道是刺激人体产生抗体?3.用作大型电器的开关4.a直接用作燃料b制成生物炭5.可持续发展,节约能源,避免污染6.人走灯开,电视电脑在待机状态而不断电PS:现在是不是有门课就叫科学课啊?
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扫描下载二维码超导体若能应用到社会生活中,会给人类带来很大的好处。各国科学家一直在努力寻找能够在室温下工作的超导材料,假如科学家已研制出室温下的超导材料。你认为它可作下列哪种用途
A.电炉中的电阻丝B.白炽灯泡的灯丝C.保险丝 D.远距离输电线
清枫遰錢虎
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扫描下载二维码这是个机器人猖狂的时代,请输一下验证码,证明咱是正常人~能帮我写一个英语文章吗?1.许多人认为为克隆是科学的进步会给人类带来各种好处2.许多人认为克隆会给人类带来很多坏处3.我的看法.
萌七七0061
仅供参考...To clone or not to clone,is that the question?Advanced technology has already pushed human being to edges,such as the production of weapons of mass destruction,the destruction of Ozone by Freon ,and the application of clone.The heated deabte over whether cloning technique should be used in human reproduc-- tion must be considered as a serious issue.Clone,to a certain degree,is beneficial to mankind.Such disease as Parkinsons will possiblly be cured in the future in the hope of further applying of clone.However,the abuse of this technology will bring human being unthinkable destruction.Since the declaration of the death of Dolly,we are more conscious of the inefficient procedure of clone.Acorrding to "Dolly's false legacy",the incidence of death among fetuses and offspring produced by cloning is much higher than it is through natural reproduction--roughly 10 times as high as normal before birth and 3 times as high after birth.And even you may argue that this technology will be perfected in the future,i don't see there is any point in whole--being cloning.Many people consider this technology a promising one as to bring all human being to a new era in which all human reproduction will be accomplished by cloning.Thus scientists in some countries have already started their great plan to clone human.But let's think,what is the practical value in doing so?You may tell me that it can bring hope for those couples unable to have children because they might choose to have a copy of one of them rather than accept the gene intrusion from a doner.But imagine,if you have a child owning the same apperance as yours or your husband's,will you accept it without any uncomfort?Don't you think it is embarrassing?Or if this kind of human reproduction is allowed,terrorists may get hold of it and reproduce lots of "American Presidents".Don't you agree that these presidents might bring the world much more chaoes?Besides these terrible aspects,the cloning of whole--being may destroy the diversity of people of the globe.Of course,there still remains much more disadvantages of the application of cloning reproduction of human being and animals.We should be extremely cautious of what we do and thus remember we will sure be respondible for all the results created by ourselves!So how do u think about it?
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