Natural sponge. Close-up of a natural sponge showing its structure. Sponges (phylum Porifera) are simple multicellular aquatic animals. They have bodies full of pores and channels (seen here) that allow water to circulate through them. This characteristic means they can hold water well and dead sponges are often used as bath sponges | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Molloy, Cordelia |
Taille de l’image : | 5139 px × 3413 px |
Model Release : | Non requis |
Restrictions : | - |