题干

观察图①~④,下列说法错误的是(  )

A:图①与图②的主要区别是图①有细胞壁、液泡和叶绿体

B:图③也是一个细胞,它有细胞壁却没有成形的细胞核

C:图①②③的遗传物质都是DNA

D:图④中生物营寄生生活,它没有细胞结构,也没有遗传物质

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答案(点此获取答案解析)

D

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