Polarised light micrograph of a transverse cross section of Knautia arvensis stalk anatomy. Magnification: x93 when printed on 10 cm wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Mis, Marek |
Taille de l’image : | 7237 px × 4830 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |