生态学 - 2026 进行中

科目: 生态学
级别: XI
类别: 大学生
测试题目: 英语
问题示例: A lake receives acidic drainage from a mine. Which change would most directly threaten its fish populations? Increased turbidity caused by suspended clay, Reduced concentration of dissolved oxygen caused by stronger winds, Lowered pH that disrupts gill function and reproduction, Greater availability of nitrate for aquatic plants