[translate] aWhich human factor most seriously threatens the survival of animals? 正在翻译,请等待... [translate] aHabitat destruction. 正在翻译,请等待... [translate] aHow many species of birds, mammals, invertebrates, and plants are endangered? 正在翻译,请等待... [translate] ...
()60. -How many species of animals do you think will be threatened with extinction when the surroundings around are damaged by mankind?-I expect quite a few. A. there being S B. there to be C. there have been D. there be 相关知识点: ...
How many new species of monkeys have been identified in Brazil alone over the last year? A. Eight. B. Nine. C. Ten. D. Eleven.正确答案:B解析:事实细节题。本题询问去年只在巴西一国就新发现多少种猴子。本题答案可以从文章第二段末句得出。选项B为正确答案。 相关知识点: ...
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(2012). A new class of weighted similarity indices using polytomous variables. Journal of Classification, 29, 199–226.MathSciNetCrossRef About this Chapter Title How Many Bee Species? A Case Study in Determining the Number of Clusters Book Title Data Analysis, Machine Learning and Knowledge ...
It is a natural process of animal species to become extinct (e.g. dinosaurs, dodos etc.). There is no reason why people should try to stop this from happening. Do you agree or disagree? Give reasons for your answer and include any relevant examples from your own knowledge or experience....
How did Earth get so many species(物种)? For thousands of years, people wond-ered. In the 1840s, one naturalist (博物学家) had an idea. His name was Charles Darwin. He spent his whole life studying animals and insects. Darwin thought that new species developed slowly, as populations of...
C. how quickly are many species of cacti becoming extinctD. how quickly is much species of cacti becoming extinct 相关知识点: 试题来源: 解析 A 句意:几乎没人意识到仙人掌物种的消失速度之快。species是可数名词,故排除B项和D项;根据感叹句的句型排除C项。
根据第三段“Not only can eDNA identify thousands of species in a single sample of water, but the technique can be used in the field to assess biodiversity in water and other environments faster, more comprehensively, yet also much less harmfully than traditional physical surveys.(eDNA 不仅可以...
How many species of non-flowering plants are there? How many species of gymnosperms are there? How big can ferns grow? What do ferns have instead of seeds? How do staghorn ferns grow? What are ferns classified as? What type of ferns are fiddleheads?