首页
登录
职称英语
While forensic scientists commonly rely on fingerprints to help identify a
While forensic scientists commonly rely on fingerprints to help identify a
游客
2024-01-11
58
管理
问题
While forensic scientists commonly rely on fingerprints to help identify a
Line person, it is not possible to use the same kind of technology with other species
of mammals. Recently, however, a group of researchers from Tokyo developed a
device that allows them to identify individuals of the endangered Ganges River
(5) dolphin species. This underwater acoustic device measures the clicking sounds
produced by the creatures and helps with identification and tracking, since each
sound is as completely unique as a fingerprint.
Ganges River dolphins are rare in that, unlike the majority of their
counterparts, they live in rivers and lakes rather than oceans. The species is blind
(10) and uses clicks to send out sonar pulses for guidance and to find food. In the past
few decades, their numbers have decreased by 50 percent, because of fishing net
entanglement, human predation, pollution, construction, or a combination of
these factors. With this new acoustic technology, scientists hope to get a better
idea of how many of these dolphins still exist, as well as their migration patterns
(15) and feeding habits. In turn, this information may help scientists protect and
conserve this unique species. [br] The passage supplies information for answering which of the following questions?
选项
A、How do the remaining Ganges River dolphins still exist?
B、What is the primary use of the new underwater acoustic technology?
C、Why do Ganges River dolphins make their homes in rivers and lakes?
D、How does the underwater acoustic technology work?
E、Can the new underwater acoustic technology be used in identifying and tracking other species of dolphins?
答案
B
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3352471.html
相关试题推荐
Somescientistshaveconcludedthatnarcolepsy,adiseasewhichdisrupt
Althoughscientistshavelong______thehumanappendixas______organ,therei
A、Scientistshaveruledoutthepossibilitythattheappendixisinvolvedinhin
Althoughsomescientists______thecredibilityoftheworkoftheirassistants,
Scientistsstudyingtheeffectoflargevolcaniceruptionsonglobalcl
Scientistshaveacknowledgedthattointerpretananimal’sthoughtprocessesin
Like______,ArcticscientistssequesteredonthePolemustaccustomthemselvest
Inspiteof______amongafewscientists,andyearsof______discussion,theclaim
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
Scientistsresearchinghypnosishaveuncoveredevidencethatcounte
随机试题
AnewstudyfromSwitzerlandshedslightonwhereicesheetsmeltedduringthei
Whatcangroupstudyinghelpyoutodo?[br][originaltext]Feellikeyou’re
AmericansEugeneFama,LarsPeterHansenandRobertShillerwontheNobelPr
关于营养制剂的描述,下列哪些是正确的()A.25%的葡萄糖液的渗透压过高,不能经
根据我国著作权法规定,下列作品中著作权保护期为作者有生之年加死后50年的是()
女性,53岁,以无尿、下肢水肿就诊;长期服用利尿药近20年,多年前发现脾大(原因
下列有关衣原体描述错误的是A.感染后白细胞计数多正常 B.细胞内寄生的微生物
学生丢了电脑液晶显示器,报警了,家长打电话过来激动的质问你,你将怎么与学生家长交
下列表述正确的是()。A:当大多数投资者对股市持观望态度时,市场交易量就会减少
不同种类、不同材质、不同结构管道抢修方法不尽相同,如预应力钢筋混凝土管一般可用(
最新回复
(
0
)