19th century illustration of a growing sponge. Sponges are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Parker, David |
Taille de l’image : | 4731 px × 6537 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |