植物学 - 2026 进行中

科目: 植物学
级别: X
类别: 大学生
测试题目: 英语
问题示例: A researcher observes a plant with sieve elements containing P-protein, companion cells, and secondary thickening in its stem. Which tissue system is being examined? Dermal tissue, Ground tissue, Vascular tissue, Meristematic tissue