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
55
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] 【C9】
选项
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794169.html
相关试题推荐
[originaltext]Medicalresearchershaveaccusedthemanufacturersofbabymi
[originaltext]Manisalandanimal,butheisalsocloselytiedtothesea.
[originaltext](1)Whenadoglosesaleg.theanimaleventuallyfiguresout
[originaltext](1)Whenadoglosesaleg.theanimaleventuallyfiguresout
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
随机试题
[originaltext]W:Accordingtosociologists,Americansocietyhaschangeddramat
下列关于灭火器的选择应考虑的因素有()。A.灭火器配置场所的火灾种类
患儿,5岁,2天前出现寒战高热,右侧胫骨疼痛和深压痛,被高度怀疑为急性化脓性骨髓
关于凡士林基质的表述错误的是A.凡士林是由多种相对分子质量的烃类组成的半固体状混
下列选项中,()不是我国国民经济行业分类国家标准中的级别。A.种类 B
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
基金资产估值引起的资产价值变动应作为公允价值变动损益计入资本公积。()
根据税法规定,主管税务机关应对纳税人采取核定征收方式征收个人所得税的情形包括(
关于管线工程的测量,说法正确的是()A可根据地面上已有建筑物进行管线定位
某学校新校区建设内容包括教学楼、运动场、实验楼三部分,关于编制该学校新校区建设项
最新回复
(
0
)