https://diler.tube/videos/watch/1096e782-7e56-4b09-b5c5-b3b92dda07e9 Khan Academy India explains the structural characteristics of arthropods, focusing on their jointed appendages and chitinous exoskeletons. The session also covers diverse respiratory mechanisms, including gills, book lungs, and the tracheal system. Fri, 16 Oct 2026 15:47:39 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://diler.tube https://diler.tube/lazy-static/avatars/f58b270a-6076-478a-ad43-3888a532ecb4.png https://diler.tube/videos/watch/1096e782-7e56-4b09-b5c5-b3b92dda07e9 All rights reserved, unless otherwise specified in the terms specified at https://diler.tube/about and potential licenses granted by each content's rightholder.