"Đề thi thử kỳ thi THPT quốc gia năm 2015 môn Tiếng Anh - ĐH Vinh (Mã đề 185)" giới thiệu 64 câu trắc nghiệm giúp, 5 câu tự luận và tự luận giúp các em học sinh có thể ôn tập lại các kiến thức đồng thời làm quen phương pháp làm bài thi Tiếng Anh, chuẩn bị thật tốt cho kỳ thi quan trọng sắp tới. | Species become endangered for a wide (59) _ of reasons. By analyzing and grouping many individual cases, however, we find the same broad causes (60) again and again. They are Habitat Destruction, Exotic Species, and Overexploitation. Among other factors threatening particular species are limited: distribution, disease, and pollution. Limited distributions are often a consequence of other threats: populations confined to one or a few small areas because of habitat (61) , for example, may be disastrously affected by random factors. Diseases can have severe (62) on species lacking natural genetic protections against particular pathogens, like the rabies and canine distemper viruses that are currently devastating carnivore populations in East Africa. Domestic animals are usually the reservoirs of these and other diseases affecting wild (63) , showing once again that human activities lie at the root of most causes of endangerment. Pollution has seriously done harm (64) number of terrestrial species, although species living in freshwater and marine ecosystems are also suffering.
