Phylum Echinodermata & Hemichordata|In 15 Minutes|Animal Kingdom|Class11|Ch-4|Biologywit|NCERT|NEET

#PhylumEchinodermata & #Hemichordata |Animal Kingdom |Class11Biology|Ch-4|#BiologyWit|NCERT|NEET Please give a thumbs up 👍 if you like the video and share it to the MAX. This video explains Characteristic features of phylum Echinodermata and hemichordata Echinodermata have organ system level of organisation.They are radially symmetrical,coelomate,Triploblastic.They have water vascular system.Show sexual reproduction and indirect development. Hemichordates have stomochord,similar to notochord. These are worm like ,have cylindrical body. Respiration through gills and excretion by proboscis gland. Yogeeta Gupta MSc ,MEd,LL,B. Lecturer in Zoology