Coloured scanning electron microscopy (SEM) of a cross section of wood showing the cellular organisation of a tree. The wood is composed of cellulose and lignin. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Berrod, Thierry |
Model Release : | Non requis |
Durée : | 10 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |