 |
| Previous Image | Next Image |
| Description: Insect tracheal system. Chitin rings reinforce branching, air-filled tubes in such respiratory systems.
Picture Stats: Views: 105 Filesize: 608.22kB Height: 1177 Width: 1446 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47473 |