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Aleksandra
Professional Teacher
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
4 quizzed
May 19, 2026 12:28 AM
Corrections · 0

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Aleksandra
Language Skills
Chinese (Mandarin), English, Korean, Polish
Learning Language
Chinese (Mandarin), Korean
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