Animal Kingdom – Chordates

Chordata Characteristics of primary chordates: Notochord: hard rod like endoskeletal structure present on the dorsal side. Nerve chord. Pharyngeal gill slits: found in primitive chordates. Characteristics of secondary chordates: Bilaterally symmetrical. Triploblastic coelomates. Organ-system level of organization. Closed circulatory system. Ventral heart. Post-anal tail supported by a notochord.     VERTEBRATA: …

Animal Kingdom

ANIMAL KINGDOM Basis of Classification:     Salient features of different phyla in the Animal Kingdom: Phylum Digestive system Respiratory system Circulatory system Monoecious/ dioecious Fertilization Development Porifera Absent Absent Absent Monoecious Internal Indirect Coelenterata Incomplete Absent Absent Monoecious Internal Indirect Ctenophora Incomplete Absent Absent Monoecious External Indirect Platyhelminthes Incomplete …