Mikroorganisme atau mikroba adalah sebuah organisme yang begitu kecil sehingga tidak dapat terlihat mata telanjang. Mikroorganisme sering digambanrkan menggunakan sel tunggal, atau mikroorganisme unisel, namun beberap protist unicell terlihat oleh mata telanjang, dan beberapa spesies multisel tidak terlihat mata telanjang. Ilmu mikroorganisme disebut mikrobiologi.

Lihat juga

• Biologi
• Mikrobiologi
• Mikroskop
• Prokaryote
• Eukaryote
• Archaea
• Sel
• Nanobacterium
• Kontaminasi tanah

Pranala luar

• Microbe News from Genome News Network
• BBC News, 28 September, 2001: The microbes that 'rule the world' Citat: "... The Earth's climate may be dependent upon microbes that eat rock beneath the sea floor, according to new research....The number of the worm-like tracks in the rocks diminishes with depth; at 300 metres (985 feet) below the sea floor, they become much rarer..."
• BBC News, 10 July, 2000, Snow microbes found at South Pole Citat: "...able to survive the large doses of ultraviolet radiation, extreme cold and darkness...The microbes have DNA sequences similar to a category of bacteria known as Deinococcus..."
• BBCNews: 16 January, 2002, Tough bugs point to life on Mars Citat: "...This research demonstrates that certain microbes can thrive in the absence of sunlight by using hydrogen gas..."
• BBCNews: 17 January, 2002, Alien life could be like Antarctic bugs
• Microbiology

Mikrobiologi

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