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
47
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] 【C8】
选项
答案
N
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794168.html
相关试题推荐
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
GoingtosummercampisalongtraditionintheUS.Some8millionchildren
随机试题
MayfieldCollegeItalianforBusiness5xthree-hourlessonstwiceweeklybeginni
Pre-courseLectureof"AmericanNovelSince1945"Tolearnt
WhichofthefollowingisNOTaU.S.newsandcablenetwork?A、ABCB、CNN.C、CBS.
Sexprejudicesarebasedonandjustifiedbytheideology(意识形态)thatbiolog
Thegrandmotherdidn’twanttogotoFlorida.Shewantedtovisitsomeofhe
(1)HazelaskshowonecanstayhealthyworkingthehoursI’vebeenworking.Here
Itisplaincommonsense--themorehappinessyoufeel,thelessunhappiness
[originaltext]TheUSpresidenthassaidthetimehascomeforareviewont
治疗慢性再生障碍性贫血的首选药是A.糖皮质激素 B.免疫抑制剂 C.造血因子
急性阑尾炎穿孔A.草绿色透明腹水 B.黄色、混浊、含胆汁性液体 C.稀脓性略
最新回复
(
0
)