异养生物(英语:heterotroph)指弗能直接以无机物或有机物,必须摄取现成个养分来维持生存机能个生物。异营包括捕食、寄生搭腐生三种。 异营性动物细胞需要个物质为水搭矿物质,更须要有机碳:葡萄糖、基本氨基酸搭维生素,因此必须直接或间接依赖自营性(绿色植物)个制造供给,然后再出水解酶分解加以利用。
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