首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
If you have ever wondered how an elephant smells, scientists have the answer. Researchers have discovered that African Elephants
If you have ever wondered how an elephant smells, scientists have the answer. Researchers have discovered that African Elephants
admin
2017-02-17
58
问题
If you have ever wondered how an elephant smells, scientists have the answer. Researchers have discovered that African Elephants have the largest number of genes【C1】______smell of any mammal. Given the size of their trunks, and how important it is【C2】______their survival, it is probably unsurprising that an elephant’s nose is not only the longest in the animal kingdom, but also the most effective.
In【C3】______, humans and other primates have a poor sense of smell. "The functions of these genes are not well known,【C4】______they are likely important for the living environment of African elephants," said author Dr Yoshihito Niimura of the University of Tokyo. "【C5】______, an elephant’s nose is not only long but also superior. " The sense of smell is【C6】______to all mammals, and they use it for【C7】______food, finding mates and locating their offspring.
In a study published in Genome Research, scientists【C8】______the 13 mammal species and found that African Elephants have twice the number of smell genes【C9】______dogs and five times more than humans. They have around 2,000 genes alone that are associated with scent. Humans in comparison have just under 400 and some other primates even【C10】______. The study found that 20,000 genes are【C11】______for the sense of smell in mammals, of which around half are functional, but the collections【C12】______for each species. Horses have around 1,000 smell genes, rabbits around 750 and rats about 1,200.
"The large repertoire of elephant (smell) genes might be attributed to elephants’ heavy【C13】______on scent in various contexts, including social【C14】______and reproduction," added Dr Niimura. African and Asian elephants possess a【C15】______scent organ behind each eye, and male elephants can produce a special substance during annual mating, which is characterized【C16】______increased aggressiveness. And【C17】______studies have revealed that, African elephants can reportedly【C18】______between two Kenyan ethnic groups—the Maasai, whose young men【C19】______manhood by spearing elephants, and the Kamba, who are agricultural people that【C20】______little threat to elephants through smell.
【C20】
选项
A、deserve
B、afford
C、pose
D、equip
答案
C
解析
根据空格后的threat,应马上想到固定搭配pose…threat to“对……造成威胁”。此处指康巴族人较少对大象造成威胁。故选C项pose。
转载请注明原文地址:https://kaotiyun.com/show/hlEZ777K
0
考研英语一
相关试题推荐
Mostyoungpeopleenjoysomeformofphysicalactivity.Itmaybeagameofsome【B1】______—football,hockey,golf,ortennis.It
Mostyoungpeopleenjoysomeformofphysicalactivity.Itmaybeagameofsome【B1】______—football,hockey,golf,ortennis.It
Mostyoungpeopleenjoysomeformofphysicalactivity.Itmaybeagameofsome【B1】______—football,hockey,golf,ortennis.It
Mostyoungpeopleenjoysomeformofphysicalactivity.Itmaybeagameofsome【B1】______—football,hockey,golf,ortennis.It
关于宇宙起源的科学发现——1998年英译汉及详解Theywere,byfar,thelargestandmostdistantobjectsthatscientistshadeverdetected:astripof
技术与天才哪个对科学发展更重要——1994年英译汉及详解Accordingtothenewschoolofscientists,technologyisanoverlookedforceinexpandingthehori
人类性格与行为形成的原因及影响——1990年英译汉及详解Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.Itisnote
人类性格与行为形成的原因及影响——1990年英译汉及详解Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.Itisnote
人类性格与行为形成的原因及影响——1990年英译汉及详解Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.Itisnote
随机试题
甲因涉嫌抢劫罪被公安机关依法逮捕,在侦查期间,甲不讲真实姓名、住址,身份不明。对此公安机关下列处理方式中正确的是()。
劳动时人体所需的氧量主要取决于
A.轮状病毒B.腺病毒C.产毒性大肠埃希菌D.侵袭性大肠埃希菌E.白色念珠菌七月男性患儿,因腹泻5天于10月28日入院,一周前开始流涕,轻咳,低热。在当地医院服药(不详),2日后热退.仍咳,伴呕吐,3~4次/日。腹泻为蛋花汤样大便,每日十余次,
司机小王,由于曾在特警队中训练过特技驾驶,对自己的开车技术深信不疑,且自恃技术高超,经常做些“高难动作”,从未失手。一日途经一渡口时,为向朋友炫耀,违反渡口汽车应顺跳板缓行驶上渡船的规定,企图不经跳板直接从岸边“飞车上船”,导致汽车上船时渡船倾覆。小王在实
下列项目中,应通过“其他应付款”科目核算的有()。
关于留置权的效力,下列说法正确的有()。
根据企业所得税法律制度的规定,下列各项中,在计算应纳税所得额时准予按一定比例扣除的公益、救济性捐赠是( )。
孟昶是我国最早的()的作者。
根据以下资料。回答以下题。2009年以来,在灾后恢复重建和扩大内需的各项政策措施的作用下,四川交通运输业投资呈现出快速增长的发展势头。1--4月,全省交通运输业投资255.74亿元,同比增长131.3%,增速较同期全社会投资快52.4个百分点,迎来了高
山东省是中国东部沿海的一个重要省份,境内河湖交错,水网密布,有著名的“南四湖”。下列不属于“南四湖”的是:
最新回复
(
0
)