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
2023-11-27
11
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] 【M1】
选项
答案
with—within
解析
词汇错误。range(范围)一词前用within,表示“在某个范围内”,符合文中意思,而with表示“拥有”或“伴随”的意思,不符合此处要表达的意思。
转载请注明原文地址:https://tihaiku.com/zcyy/3222430.html
相关试题推荐
Untilwhatagedoyouthinkpeopleshouldbeencouragedtoremaininpaidemp
(1)ThejammedparkinglotoutsideMuirWoodsisproofthatthisstandofold
PASSAGETHREE[br]Whatdoestheword"off-limits"inParagraphSixmean?Unavail
(1)Atacertainseasonofourlifeweareaccustomedtoconsidereveryspot
(1)Atacertainseasonofourlifeweareaccustomedtoconsidereveryspot
(1)Atacertainseasonofourlifeweareaccustomedtoconsidereveryspot
PASSAGEONE[br]In"...,andtherewasacertainamountofevidencetobackhim
IcametoAfricawithonepurpose:Iwantedtoseetheworldoutsidethepe
IcametoAfricawithonepurpose:Iwantedtoseetheworldoutsidethepe
IcametoAfricawithonepurpose:Iwantedtoseetheworldoutsidethepe
随机试题
[originaltext]Wearesousedtoourlifeonthesurfaceoftheearththati
WhichofthefollowingstatementsaboutSouthKorea’soldaddresssystemisCORR
【教案】 Anne’sbestfriend Teachingaims: Knowledgeaims: Studentscanunde
美达家具厂得知Z机关所建办公楼要购置一批办公桌椅,于2月1日致函Z机关以每套10
有关皮肤基底细胞癌的描述哪项是错误的()A.对化疗不敏感 B.病程发展缓
Asbothareligionandasocialforce,Pu
帕金森综合症A.苯海索 B.肾上腺素 C.去甲肾上腺素 D.溴隐亭 E.
赵某下班以后去财务科领取工资,财务因粗心多给了他500元,赵某因赶着回家,所以拿
水下开挖独立基坑,工程机械应优先选用()。A.正铲挖掘机 B.反铲挖掘机
安全技术措施计划编制可以按照“①制定安全技术措施计划评价;②安全技术措施计划的充
最新回复
(
0
)