Radiolarian test, SEM

Numéro d’image : 12298443
Radiolarian test, SEM
Radiolarian test (marine), coloured scanning electron micrograph (SEM). The hard skeleton is composed of silica or strontium sulphate. The Radiolaria (also called Radiozoa) are protozoa that produce intricate mineral skeletons. They are found as zooplankton throughout the ocean and their skeletal remains make up a large part of the cover of the ocean floor as silica ooze. Radiolarians can often contain symbiotic algae, especially zooxanthellae, which provide most of the cell's energy. Some of this organization is found among the heliozoa, but those lack central capsules and only produce simple scales and spines. Magnification: x125 when shortest axis printed at 25 millimetres.
Licence : Droits gérés
Crédit: Science Photo Library / DENNIS KUNKEL MICROSCOPY
Taille de l’image : 2619 px × 3337 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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