裸藻可作为水体污染的指示生物,体内含有叶绿体。将它放在黑暗条

裸藻可作为水体污染的指示生物,体内含有叶绿体。将它放在黑暗条件下,在含有葡萄糖的培养液中也可繁殖,这说明裸藻(    )

A.不能进行光合作用                      B.在无光条件下也能进行光合作用

C.是异养生物                            D.既能进行自养生活,又能进行异养生活

答案

D

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