题干

一棵杨树的结构层次由小到大依次是(     )

A:细胞→器官→组织→系统→个体

B:细胞→组织→器官→系统→个体

C:细胞→组织→器官→个体

D:细胞→器官→系统→个体

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答案(点此获取答案解析)

C

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