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
2024-01-31
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] 【C6】
选项
答案
F
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3410432.html
相关试题推荐
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshave
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshave
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshave
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsects
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsects
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsects
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsects
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopeda
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
随机试题
当下人们倡导更健康的生活方式,自行车已再度回归人们的生活,重新成为人们重要的出行工具。Asahealthierlifestyleisbeingpro
Today,studentswhowanttolearnEnglishintheUShaveawidechoiceofco
DorisLessingwasbornin1919inPersia,movingasachildwithherfamily
Then______wehadbeenlookingforwardto.A、camethehourB、thehourcameC、comes
安排会议的就餐工作一定要事先确定好()。A.菜单 B.伙食标准和进餐方式
填入横线③处的过渡用语最恰当的是()。 A.“现函复如下” B.“现批
流感疫苗的接种对象不包括A.6~35个月的婴幼儿 B.60岁以上的老年人 C
根据《医疗用毒性药品管理办法》及相关规定,关于医疗用毒性药品生产、经营管理的说法
S公司拥有甲、乙、丙、丁四家公司表决权资本的比例分别为63%、32%、70%和2
骨盆底的组成,下列哪项不正确A、盆膈由肛提肌及其筋膜组成,是支托盆内脏器的最主要
最新回复
(
0
)