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. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Berrod, Thierry |
Modell-Rechte: | nicht erforderlich |
Länge: | 10 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |