n.蓝细菌

Cyanobacteria, also known as blue-green algae, are photosynthetic prokaryotes that can produce oxygen.
蓝藻，也被称为蓝绿藻，是一种能够产生氧气的光合原核生物。
Cyanobacteria play a crucial role in the nitrogen cycle by fixing atmospheric nitrogen into a usable form for other organisms.
蓝藻在氮循环中发挥关键作用，通过将大气中的氮固定为其他生物可用的形式。
The stromatolites formed from ancient cyanobacteria provide evidence of some of the earliest life on Earth.
古代蓝藻形成的叠层石为地球上最早的生命提供了证据。
Cyanobacteria are often found in freshwater and marine ecosystems where they form blooms under favorable conditions.
蓝藻常常出现在淡水和海洋生态系统中，在适宜条件下会形成大量的繁殖群体（水华）。
Some species of cyanobacteria produce toxins which can pose risks to human health and aquatic environments when present in high concentrations.
某些种类的蓝藻会产生毒素，当浓度较高时会对人体健康和水生环境构成威胁。
Cyanobacteria have been used in bioremediation projects due to their ability to remove heavy metals from contaminated water.
由于蓝藻能从受污染的水中去除重金属，因此在生物修复项目中被广泛应用。
The chloroplasts in eukaryotic plants and algae are believed to have originated from endosymbiotic cyanobacteria.
真核植物和藻类中的叶绿体被认为起源于内共生的蓝藻。
Many cyanobacteria exhibit a wide range of morphological diversity, ranging from single cells to filamentous colonies.
许多蓝藻显示出广泛的形态多样性，从小单细胞到丝状群体不等。
Cyanobacteria's capability to carry out oxygenic photosynthesis is one of the main reasons why Earth's atmosphere became oxygen-rich.
蓝藻进行氧光合作用的能力是地球大气变得富含氧气的主要原因之一。
Researchers are exploring the potential use of cyanobacteria for biofuel production due to their ability to convert sunlight into chemical energy.
研究人员正在探索利用蓝藻生产生物燃料的可能性，因为它们能将阳光转化为化学能。