A drifting soup of microscopic algae, creatures and bacteria, they are not even one group of species but bridge entire taxonomic kingdoms.

它们是由细微的藻类、生物和细菌组成的漂流汤，甚至算不上一组物种，但是却连接起了整个分类王国。

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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.

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。

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The next step is to use bacteria to break down the algae into natural gas and different chemicals.

下一步就是用细菌把海藻分解成天然气和不同的化学物质。

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The lake's algae, bacteria and invertebrates appeared unfazed by the extra hormone which she dumped in the lake at regular intervals.

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For generations, microbiologists had known that single-celled bacteria, fungi and algae survive thanks to proteins that respond to visible light.

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