What is the Difference Between Gills and Lungs - Pediaa.Com
Biology of the vertebrates : a comparative study of man and his animal allies. Vertebrates; Vertebrates -- Anatomy; Anatomy, Comparative. Gill Sac â Outer Duct from Sac Common Opening of Branchial
Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. GILLS 355 Fishes.—In the true Fishes the gills come into close relation with the visceral arches, and in Elasmobranchs they consist of closely approximated
Respiratory System of Balanoglossus (With Diagram) | Chordata | Zoology