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# Salient Features of Different Phyla in the Animal Kingdom | Phylum | Level of Organisation | Symmetry | Coelom | Segmentation | Digestive System | Circulatory System | Respiratory System | Distinctive Features | |---|---|---|---|---|---|---|---|---| | Porifera | Cellular | Various | Absent | Absen...

# Salient Features of Different Phyla in the Animal Kingdom | Phylum | Level of Organisation | Symmetry | Coelom | Segmentation | Digestive System | Circulatory System | Respiratory System | Distinctive Features | |---|---|---|---|---|---|---|---|---| | Porifera | Cellular | Various | Absent | Absent | Absent | Absent | Absent | Body with pores and canals in walls | | Coelenterata (Cnidaria) | Tissue | Radial | Absent | Absent | Incomplete | Absent | Absent | Cnidoblasts present | | Ctenophora | Tissue | Radial | Absent | Absent | Incomplete | Absent | Absent | Comb plates for locomotion | | Platyhelminthes | Organ-system | Bilateral | Absent | Absent | Incomplete | Absent | Absent | Often worm-shaped, elongated | | Aschelminthes | Organ-system | Bilateral | Pseudo coelomate | Absent | Complete | Absent | Absent | Body segment. | | Annelida | Organ-system | Bilateral | Coelomate | Present | Complete | Present | Absent | Body segmentation like rings. | | Arthropoda | Organ-system | Bilateral | Coelomate | Present | Complete | Present | Present | Exoskeleton of cuticle, jointed appendages. | | Mollusca | Organ-system | Bilateral | Coelomate | Absent | Complete | Present | Present | External skeleton of shell, usually present. | | Echinodermata | Organ-system | Radial | Coelomate | Absent | Complete | Present | Present | Water vascular system, radial symmetry. | | Hemichordata | Organ-system | Bilateral | Coelomate | Absent | Complete | Present | Present | Worm-like with probocis, collar and trunk. | | Chordata | Organ-system | Bilateral | Coelomate | Present | Complete | Present | Present | Notochord, dorsal hollow nerve cord. Gill slits with limbs or fins. |