生态学 - 2026 进行中

科目: 生态学
级别: II
类别: 大学生
测试题目: 英语
问题示例: A prolonged drought causes a pond to shrink and reduces the number of aquatic plants. Which ecological concept best describes the effect of drought on the plant population? An environmental limiting factor, A trophic level, A symbiotic relationship, A genetic mutation