Testosterone molecule,artwork. Testosterone is a steroid hormone responsible for the development of male secondary sex characteristics,and is the principle male sex hormone produced in the testes | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Animate4.com |
Bildgröße: | 4205 px × 4205 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |