Diatoms #19 is a photograph by Steve Gschmeissner/science Photo Library which was uploaded on October 31st, 2019.
Diatoms #19
Diatoms. Coloured scanning electron micrograph (SEM) of an arrangement of diatoms to show their diversity. Diatoms are planktonic unicellular algae.... more
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Diatoms #19
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Steve Gschmeissner/science Photo Library
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Diatoms. Coloured scanning electron micrograph (SEM) of an arrangement of diatoms to show their diversity. Diatoms are planktonic unicellular algae. The characteristic feature of diatoms is their intricately patterned, glass-like cell wall, or frustule. The frustule often has rows of tiny holes, known as striae. Diatoms may be extremely abundant in both freshwater and marine ecosystems; it is estimated that 20% to 25% of all organic carbon fixation on the planet is carried out by diatoms. This is possible because they contain chlorophyll. Diatoms are a major food resource for marine and freshwater microorganisms and animal larvae, and are a major source of atmospheric oxygen.
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October 31st, 2019
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