自养生物：一种能够从无机物质如光或化学能量中合成出自身食物的有机体。绿色植物，海藻及某些细菌都是自养生物。
Autotroph: an organism capable of synthesizing its own food from inorganic substances using light or chemical energy. green plants algae and certain bacteria are autotrophs.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。
The female gametophyte is reduced but larger than in angiosperms; it is not autotrophic.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。
The female gametophyte is reduced but larger than in angiosperms; it is not autotroph ic.
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