Polarised light micrograph of a Vorticella sp. peritrich ciliate protozoan. Rows of cilia (microscopic hairs) and an undulating membrane create a current of water which directs food towards the buccal cavity (mouth opening,upper frame). Vorticella are sessile,meaning they attach to a surface and cannot move around on their own. When disturbed,they contract their stalk into a tight coil. This contraction is one of the fastest known actions in the animal kingdom. Magnification: x330 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Mis, Marek |
Bildgröße: | 2442 px × 3647 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |