Animal Kingdom Class XI Biology

1. PORIFERA
WATER TRANSPORT OR CANAL SYSTEM
OSTIA
SPONGOCOEL
OSCULUM
SPICULES
HERMAPHRODITE
EXAMPLES: SYCON (SCYPHA), SPONGILLA (FRESH
WATER SPONGE) AND EUSPONGIA (BATH SPONGE).
COELENTERATA
CNIDOBLASTS
CENTRAL GASTRO-VASCULAR CAVITY
POLYP AND MEDUSA
EXAMPLES: PHYSALIA (PORTUGUESE MAN-OF-WAR),
ADAMSIA (SEA ANEMONE), PENNATULA (SEA-PEN),
GORGONIA (SEA-FAN) AND MEANDRINA (BRAIN
CORAL).
CTENOPHORA
COMB PLATE
BIOLUMINESCENCE
·HERMAPHRODITE
EXAMPLES: PLEUROBRACHIA AND CTENOPLANA.
PLATYHELMINTHES
MOSTLY ENDOPARASITE
HOOKS AND SUCKERS
FLAME CELLS
EXAMPLES: TAENIA (TAPEWORM), FASCIOLA (LIVER
FLUKE).
ASCHELMINTHES
PSEUDOCOELOMATE
MUSCULAR PHARYNX
DIOECIOUS
EXAMPLES: ASCARIS (ROUNDWORM), WUCHERERIA
(FILARIA WORM), ANCYLOSTOMA (HOOKWORM)
ANNELIDA
METAMERIC SEGMENTATION
LONGITUDINAL AND CIRCULAR MUSCLES
PARAPODIA
NEPHRIDIA
GANGLIA
·EXAMPLES: NEREIS, PHERETIMA , HIRUDINARIA

2. ARTHROPODA
SEGMENTED
JOINTED APPENDAGES
BODY -- HEAD, THORAX AND ABDOMEN
CHITINOUS EXOSKELETON
RESPIRATORY ORGANS: GILLS, BOOK GILLS, BOOK LUNGS
OR TRACHEAL SYSTEM
RMALPIGHIAN TUBULES
MOLLUSCA
BODY- HEAD, MUSCULAR FOOT AND VISCERAL HUMP.
GILLS
SENSORY TENTACLES
·RADULA: RASPING ORGAN IN MOUTH
·OVIPAROUS
ECHINODERMATA
SPINY BODY
WATER VASCULAR SYSTEM
EXCRETORY SYSTEM: ABSENT
DEVELOPMENT IS INDIRECT WITH FREE-SWIMMING LARVA
ADULT - RADIALLY SYMMETRICAL, LARVAE - BILATERALLY
SYMMETRICAL.
HEMICHORDATA
NON-CHORDATA
BODY- PROBOSCIS, A COLLAR AND A LONG TRUNK
GILLS
EXCRETORY ORGAN: PROBOSCIS GLAND
EXAMPLES: BALANOGLOSSUS AND SACCOGLOSSUS.
CHORDATA
NOTOCHORD, A DORSAL HOLLOW NERVE CORD AND
PAIRED PHARYNGEAL GILL SLITS
POST ANAL TAIL AND A CLOSED CIRCULATORY SYSTEM
SUBPHYLA-
1- PROTOCHORDATES - UROCHORDATA
CEPHALOCHORDATA
2 VERTEBRATA