Urea crystals. Polarised light micrograph of crystals of urea,an organic compound that contains nitrogen,hydrogen and carbon. Urea is excreted from the body by the kidneys,dissolved in urine. Urea is also used industrially on a wide scale in its liquid form. This is urea in its solid,crystalline form,seen in transient,plane-polarised light | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 3770 px × 4748 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |