Hall RJ, Milner-Gulland EJ, Courchamp F (2008) Endangering the endangered: the effects of perceived rarity on species exploitation . Conserv Lett 2 : 75–81Hall, R. J., Milner‐Gulland, E. J., and Courchamp, F. (2008). Endangering the endangered: The effects of perceived rarity ...
只有C. has less side effects(有很少的副作用)可以从文章中推断出来。故选C项。 (2)题详解: 推理判断题。根据第三段“If done repeatedly, conservationists can draw up a database of all, or at least a significant proportion of the individuals within the population. After that conservationists can...
Rain which is polluted by chemicals endangered species 濒危物种 animals or plants are on the verge of extinction Natural environment 自然环境 the place where animals and plants would normally be found Greenhouse effect 温室效应 the gradual warming of the air surrounding the Earth as a result of he...
Endangered species often have unique genetic traits that can provide valuable insights into the evolution of life on Earth. Additionally, studying endangered species can help us understand the effects of climate change and other environmental pressures on different species. This knowledge can then be ...
根据第一段中的When an animal species is considered endangered,it means that the International Union for Conservation of Nature (IUCN) has evaluated it as nearly extinct,which means that a majority of its population has already died off and the rate of birth is lower than the species' death ...
populationhasalreadydiedoffandtherateofbirthislowerthanthespecies' deathrate.Today,moreandmoreanimalandplantspeciesareonthewaytoextinctionbecauseofavarietyofmajorfactorsthatcauseaspeciestobecomeendangered,andasyoumightexpect,humansplayaroleinquiteafewofthem-infact,thebiggestthreattoendangeredanimalsishumanencroachment...
ultraviolet rays: A type of electromagnetic radiation emitted by the Sun, which can cause skin burns and has various effects on the environment. atmosphere: The layer of gases surrounding Earth, essential for supporting life by ...
63.A.细节理解题:从第五段的句子:The introduction of a non-native species to a habitat may make animals become endangered.The native species may not defend against a new one,and the effects can be dangerous.可知引进非本地的物种对当地的物种是危险的因为当地的物种可能死于新的疾病,故选A.64.B...
【小题3】细节题:从第五段的句子:The introduction of a non-native species to a habitat may make animals become endangered. The native species may not defend against a new one, and the effects can be dangerous.可知引进非本地的物种对当地的物种是危险的因为当地的物种可能死于新的疾病,选A【小题...
根据空后的“the effects that humans have had on specific species”(人类对特定物种的影响)可知,一个人很难认识到人类对特定物种的影响,故B项正确。 10.【答案】A 【解析】考查动词词义辨析。句意:也很难确定或预测人类对个别物种和栖息地的影响,特别是在人类的一生中。A. predict预测;B. devote致力于;C...