k Diatoms, SEM Diatoms. Coloured scanning electron micrograph SEM of a variety of diatoms mainly navicula sp.. 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. A unique feature of diatom cells is that they are enclosed within a cell wall made of silica hydrated silicon dioxide called a frustule. Magnification x1000 when printed at 10 centimetres wide. Stock Photo - Afloimages
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Diatoms, SEM Diatoms. Coloured scanning electron micrograph  SEM  of a variety of diatoms  mainly navicula sp. . 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. A unique feature of diatom cells is that they are enclosed within a cell wall made of silica  hydrated silicon dioxide  called a frustule. Magnification: x1000 when printed at 10 centimetres wide.
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Diatoms, SEM

Diatoms. Coloured scanning electron micrograph (SEM) of a variety of diatoms (mainly navicula sp.). 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. A unique feature of diatom cells is that they are enclosed within a cell wall made of silica (hydrated silicon dioxide) called a frustule. Magnification: x1000 when printed at 10 centimetres wide.

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