首页
登录
职称英语
Researchers have identified 1.4 million animal species so far—and millions re
Researchers have identified 1.4 million animal species so far—and millions re
游客
2024-01-24
49
管理
问题
Researchers have identified 1.4 million animal species so far—and millions remain to be discovered, named, and scientifically described. So how much would it actually cost to【C1】______every animal on Earth? A pair of Brazilian scientists has crunched (大量运算) the numbers and【C2】______up with an answer: $263 billion.
That’s way more than the $5 billion that famed Harvard University biologist Edward O. Wilson estimated back in 2000—and that was for every species on Earth, not just animals. But even $263 billion would be a【C3】______price to pay to understand the creatures that【C4】______such essentials as agriculture, fisheries, new drugs, and energy sources, says ornithologist (鸟类专家) Joel Cracraft of the American Museum of Natural History in New York City. "Literally, the world economy runs on biodiversity," he says. "People don’t understand really, deeply how much we depend on biodiversity."
Most biologists agree that with extinction rates【C5】______and climate change looming, the【C6】______to document the planet’s biodiversity—or biota (生物区)—is urgent,【C7】______considering the essential role these life forms play in crop pollination, clean air, and other aspects of human【C8】______"We are losing species by extinction faster than
we are describing new species" according to some estimates, says biologist Antonio Marques, who【C9】______the new paper with Fernando Carbayo, both at the University of St. Paulo in Brazil. "We have to know the biota to preserve and conserve the biota," he says. Besides the money, another huge【C10】______to a complete understanding of the animal kingdom is a global shortage of taxonomists (分类专家), experts say.
A) attempt F) effort K) obstacle
B) cheaper G) enable L) small
C) classify H) especially M) soaring
D) coauthored I) exactly N) well-being
E) come J) identify O) yet [br] 【C2】
选项
答案
E
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3390009.html
相关试题推荐
去年三星在中国销售了3000万台设备,市场占有率达到17.7%。Thecompanysold30milliondevicesinChinafor
[originaltext](1)Therewere6millioncyber-attacksrecordedlastyearinK
[originaltext](1)Therewere6millioncyber-attacksrecordedlastyearinK
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
随机试题
•Lookatthetablebelow.•Someinformationismissing.•Youwillhearatelepho
SomecommunitiesinFloridaarepopulatedalmostexclusivelybyretiredpeoplea
Therecentconferenceontheeffectiveuseoftheseasandoceanswasanotherat
为防止石材表面泛碱,一般应采取的措施是()。A.采用花岗石代替大理石 B.石
对于《普通高中语文课程标准(实验)》提出的“表达与交流”方面的实施建议,下列理解
设备安装基准线是要其施工图纸,按()来确定设备的纵横中心线。A.土建提交的纵
电磁波测距仪所采用的载波不包括()。A、超声波 B、电磁微波 C、激光
窦房结细胞动作电位的特征是 A.0期去极速度快、幅度高B.4期自动去极C.两者
某工程项目标底是900万元人民币,投标时甲承包商根据自己企业定额算得成本是
三个样本率比较,当时,可以得出A.三个总体率均不相等 B.三个样本率均不相等
最新回复
(
0
)