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Aleksandra
职业教师
Dear students, Here is your today IELTS Reading practice. Please read the following article: After wolves were reintroduced, elk altered grazing patterns, allowing streamside vegetation to recover. The cascading changes improved habitat for beavers and birds.
Question: What ecological concept is illustrated?
Genetic drift
Trophic cascades affecting multiple species
Desertification
Ocean acidification
2 人已做了小测试
2026年5月19日 00:28
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Aleksandra
语言技能
中文, 英语, 韩语, 波兰语
学习语言
中文, 韩语
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