Diatom, SEM
Bildnummer 13506574
| Diatom. Coloured scanning electron micrograph (SEM) of a single fresh water diatom. 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 thus 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: x3000 when printed at 10 centimetres wide. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Gschmeissner, Steve |
| Bildgröße: | 4310 px × 4572 px |
| Modell-Rechte: | nicht erforderlich |
| Restrictions: | - |
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