首页
登录
职称英语
Cells cannot remain alive outside certain limits of temperature and much na
Cells cannot remain alive outside certain limits of temperature and much na
游客
2023-12-04
26
管理
问题
Cells cannot remain alive outside certain limits of
temperature and much narrower limits mark the boundaries of
effective functioning. Enzyme systems of mammals and birds are
most efficient only with a narrow range around 37℃; a departure【M1】______
of a few degrees from this value serious impairs their functioning.【M2】______
Even though cells can survive wider fluctuations the integrated
actions of bodily systems are impaired. Other animals have a wide【M3】______
tolerance for changes of bodily temperature.
For century it has been recognized that mammals and birds【M4】______
differ other animals in the way they regulate body temperature.【M5】______
Ways of characterizing the difference have become more accurate
and meaningful over time, but popular terminology still reflects an【M6】______
old division into " warm-blooded" and " cold-blooded" species;
warm-blooded included mammals and birds whereas all other
creatures were considered cold-blooded. As more species were
studied, it became evident that this classification was adequate. A【M7】______
cold-blooded fence lizard usually has a body temperature only a
degree or two below those of humans and so is not cold. Therefore【M8】______
the next distinction was taken between animals that maintain a【M9】______
constant body temperature, called homeotherms, and those whose
body temperature varies with their environments, called
poikilotherms. But this classification was also proved inadequate,【M10】______
because among mammals there are many that vary their body
temperatures during hibernation. Furthermore, many invertebrates
that live in the depths of the ocean never experience change in the
depths of the ocean, and their body temperatures remain constant. [br] 【M7】
选项
答案
adequate—inadequate
解析
语篇错误。根据上下文,随着对更多物种的研究.我们发现原来对暖血动物和冷血动物的划分是不充分的(inadequate)。比如有的动物,体温只比人类低一到两度,而被划为冷血动物,就是不恰当的。故此处应改为inadequate,符合文意。
转载请注明原文地址:https://tihaiku.com/zcyy/3242946.html
相关试题推荐
Manystudentschoosetoattendschoolsoruniversitiesoutsidetheirhomecou
Presentnewspapersarefullofstoriesofcheatingordeceptions.Onecannot
Bytheyear2100,globaltemperaturesareanticipatedtorisebybetween0.8
Bytheyear2100,globaltemperaturesareanticipatedtorisebybetween0.8
Bytheyear2100,globaltemperaturesareanticipatedtorisebybetween0.8
Bytheyear2100,globaltemperaturesareanticipatedtorisebybetween0.8
MarkTwain’sinstructionswerequiteclear:hisautobiographywastoremain
MarkTwain’sinstructionswerequiteclear:hisautobiographywastoremain
Complaintsandlawsuitscannotsolvetheproblemofoverregulation,onlyide
Complaintsandlawsuitscannotsolvetheproblemofoverregulation,onlyide
随机试题
RichNorth,HungrySouthAfewyearsago,th
黄河黄河是中华文明和中华民族的摇篮,所以又被称作“母亲河”。黄河长达5464公里,是中国第二大
唐代的染织工艺十分发达,更追求华丽的色彩效果,以织锦最著名,称为()。A.蜀锦
属于均相酶免疫测定的方法是A.酶联免疫化学发光测定 B.dot-ELISA
关于三维超声成像的原理下列正确的是A.实时三维成像是在二维成像基础上,用计算机重
A.第7胸椎棘突 B.第5颈椎棘突 C.第6颈椎棘突 D.第4腰椎棘突
A.量多,粗大,圆而均匀,充满胞质,鲜橘红色B.量多,细小,分布均匀,布满胞质,
共用题干 第二篇Milosevic'sDeathFormerYugosla
反映企业短期内可变现资产偿还短期内到期债务能力的指标是()。A.速动比率 B
2020年2月,中国公民孙某从其任职的公司取得限制性股票50000股,在获得限制
最新回复
(
0
)