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
2023-06-22
15
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:https://tihaiku.com/zcyy/2773729.html
相关试题推荐
[originaltext](23)Overtimeanimalshavedevelopedmanywaystostayawayf
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
Researchershaveidentified1.4millionanimalspeciessofar—andmillionsre
[originaltext]Intheearly1950s,researchersfoundthatpeoplescoredlower
随机试题
TitleEnglishLanguageTestingServiceConductedTheBritishCouncil
房地产开发贷款是指向借款人发放的用于()等用途的房地产项目的贷款。A.开发
(2020年真题)股权投资基金募集资金的主要要求应当包括()。 Ⅰ向合
幼儿园教育目标中最有操作性的、最具体的目标是()A.班级一周计划的教育目标
在一次全市小学二年级的数学统考后,随机抽取男生35名,标准差为6,女生32名,标
一元线性回归模型的总体回归直线可表示为( )。A.E(yi)=α+βxi B
(2018年真题)由于影响药物代谢而产生的药物相关作用有( )A.苯巴比妥使华
最可能为肝硬化腹水的是A.腹水比重 B.腹水比重>1.018,李凡他(Riva
2019年9月,陈某从汽车4S店(增值税一般纳税人)购买2.0升排量的乘用车,支
某500kV变电所装设2组750MVA主变压器(由3台单相三绕组自耦变压器组成)
最新回复
(
0
)