Evolution of bilaterian nerve cords, conceptual illustration. Bilaterians are animals with bilateral symmetry, which means they have a head, a tail, and an upper and lower side, as well as left and right sides. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Ella Maru Studio |
Bildgröße: | 7241 px × 4827 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |