Close-up of region of diatom frustule,coloured scanning electron micrograph (SEM). Diatoms are unicellular organisms and a major group of algae. Diatoms are encased within a hard cell wall made from silica known as a frustule. Diatom communities are often used to measure environmental conditions,for example,water quality. Magnification: x3000 when printed at 10 cm wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Anne Weston,EM STP,the Francis Crick Institute |
Taille de l’image : | 4956 px × 3526 px |
Model Release : | Non requis |
Property Release : | Non requis |
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