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
30
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
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
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
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
()具体列举了商业银行的可疑交易标准。
台湾现代文学史上的第一篇小说是()
组成药物中不含有川芎的方剂是
甲在公园游玩时遇见仇人胡某,顿生杀死胡某的念头,便欺骗随行的朋友乙、丙说:“我们追逐胡某,让他出洋相。”三人捡起木棒追逐胡某,致公园秩序严重混乱。将胡某追到公园后门偏僻处后,乙、丙因故离开。随后甲追上胡某,用木棒重击其头部,致其死亡。关于本案,下列哪些选项
记账凭证的基本内容不包括所附原始凭证张数。()
行政决策可分为战略决策和战术决策。下列某市政府的决策属于战略决策的是()。
一、注意事项1.申论考试与传统的作文考试不同,是分析驾驭材料的能力与表达能力并重的考试。2.仔细阅读给定的资料,按照后面提出的“作答要求”依次作答。二、给定资料1.2011年1月19口是春运的第一天,近万人簇拥在苏州火车站体育
根据以下资料。回答问题。2012年,前往旅游人数大于北京出境旅游人数的5%的主要前往国有:
Acidrainleadstofishmortality.ManyspeciesoffishcannotsurviveinaquaticenvironmentswherethepHisbelow5.0.Ifth
Whendidthewomanwantthestoretodelivertheitems?
最新回复
(
0
)