Computer artwork of a ball-and-stick model of a molecule of the hormone melatonin. Atoms are colour-coded and represented as spheres; carbon (black),hydrogen (silver),nitrogen (blue) and oxygen (red). Melatonin controls the body's biological rhythm and it induces sleep | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Maslo, Miriam |
Taille de l’image : | 4334 px × 4890 px |
Model Release : | Non requis |
Restrictions : | - |