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
2024-01-26
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] 【C8】
选项
答案
N
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3395514.html
相关试题推荐
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
随机试题
Markusuallygetsupat7a.m.Hedoeshismorningexercisesfortwentyminu
Ifwinningiseverything,Britishanthropologistshavesomeadvice:wearre
Itisclearthatsomepeoplewhoparticipateinexercisetrainingwilldevel
[originaltext]M:Vicky!Haveyouheardthenews?W:No,Sam.Whatdoyoumean?
不发生在异相睡眠期的是()。A.眼球快速运动 B.有利于建立新的突触联系
测定石灰中的有效氧化钙含量及有效氧化镁含量时,滴定停止的标志是()。A.测
属于获得性红细胞膜缺陷的疾病是A.冷凝集素综合征B.行军性血红蛋白尿症C.遗传性
有关医疗机构在传染病防治中职责描述不正确的是A、指定专门部门或者人员承担疫情报告
下列建设工程目标动态控制工作中,属于PDCA中检查工作的是( )。A、编制工程项
孕40周临产,规则宫缩12小时,破膜10小时。肛查:宫口开大8cm,S+1,目前
最新回复
(
0
)