首页
登录
职称英语
Researchers have identified 1.4 million animal species so far—and millions r
Researchers have identified 1.4 million animal species so far—and millions r
游客
2024-01-31
2
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(详细计算)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(分类学家), 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] 【C3】
选项
答案
L
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3410429.html
相关试题推荐
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopeda
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopeda
Ofthemillionsofinventions,whataretheeightgreatest?A)I’vedrawn
Ofthemillionsofinventions,whataretheeightgreatest?A)I’vedrawn
Ofthemillionsofinventions,whataretheeightgreatest?A)I’vedrawn
Ofthemillionsofinventions,whataretheeightgreatest?A)I’vedrawn
AremarkablevarietyofinsectsliveinthisplanetMorespeciesofinsects
AremarkablevarietyofinsectsliveinthisplanetMorespeciesofinsects
AremarkablevarietyofinsectsliveinthisplanetMorespeciesofinsects
AremarkablevarietyofinsectsliveinthisplanetMorespeciesofinsects
随机试题
2008年9月,某公司卖出12月到期的S&P500指数期货合约,期指为1400点,到了12月份股市大涨,公司买入100张12月份到期的S&P500指数期货合约
Thetermbiologicalclockisappliedtothemeansbywhichlivingthingsadj
通过招投标订立的建设工程施工合同,合同价应为()。A:评标价 B:投标报价
白先生的儿子今年刚上初一。白先生目前持有银行存款3万元。他现在开始着手为儿子的大
某企业计划从2003年起产量每年比上一年增长7%,按此计划2008年产量比200
ACE。交互作用BXC的平方和SB×C=S8+S11误差列占了5列,每一列的自由度为2,因此,误差平方和的自由度fe=5X2=10。
()具有保证劳动法体系全面实施的功能。A.劳动法律法规制度 B.企业内部劳动
假定2008年5月1日发行面额为1000元、票面利率10%、10年期的债券,每年
甲有限责任公司(以下简称甲公司)为一家从事机械制造的增值税一般纳税人企业,适用的
常见的钢制储罐的安装方法中,适合于大型和特大型储罐,便于自动焊作业的是( )方
最新回复
(
0
)