Sponge spicules. Coloured scanning electron micrograph (SEM) of spicules from a sponge. Sponges are primitive aquatic organisms that filter food from the water. They are a loose aggregation of cells supported by spicules and needles composed of silica. Magnification: x 500 when printed at 10 centimetres wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 4862 px × 3594 px |
Model Release : | Non requis |
Restrictions : | - |