Phylum: Chordata Subphylum: Vertebrata Classes: Chondrichthyes Osteichthyes Amphibia Reptilia Aves Mammalia.
Gastrulation Definition = migration and division of cells to set up the 3 primary germ layers. What positions do presumptive germ layers occupy in the.
Chordates Zoology Donald Winslow 4 April 2008 Following Hickman et al. 2008, Ch 23 pp 497-506, 508-510, 512 (protochordates & early vertebrates) Ch 24.
Chordates An Introduction. Kingdom Animalia- All inverts & verts 1.Phylum Chordata: All have nerve cords. 3 subphyla : A- Urochordata (tunicates aka sea.
PHYLUM CHORDATA notochord dorsal, hollow nerve tube gill slits post anal tail.
