Sponge spicule. Coloured scanning electron micrograph (SEM) of a spicule 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. This is a euaster form,where all extensions radiate outward from a central region (as opposed to having a branched structure) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 3129 px × 3340 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |