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
2023-06-29
24
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] 【C5】
选项
答案
M
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794165.html
相关试题推荐
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
GoingtosummercampisalongtraditionintheUS.Some8millionchildren
随机试题
TheworkforcehaverecentlybeencallingfortheirworkinghourstobereduceD.M
Itisoftenthroughgooddinnersthatonemakesfriends.InJapan,thereare
Doyoualwaysunderstandthedirectionsonabottleofmedicine?Doyouknow
A.山药B.枸杞C.冬虫夏草D.甘草E.黄连国家对部分重点中药材购销实行管理,属
通过接触感染的是A.猪带绦虫B.蛲虫C.黑热病原虫D.阴道毛滴虫E.血吸虫
不属于学校卫生保健的作用的是A.促进学校教育目标的实现 B.早期发现和处理健康
由风险资本家融资的初创公司比通过其他渠道融资的公司的失败率要低。所以,与诸如企
在俄罗斯国家杜马日前举行的经济工作会议上,一些专家强调,在世界上多数国家陷人危
适用于数值型数据的图示方法有()A.直方图 B.折线图 C.条形图 D.
沟槽式连接件连接可用于消防水、空调冷热水、给水、雨水等系统直径大于或等于( )m
最新回复
(
0
)