Q9: Please match all of the short answer with the given options on the picture Match the characters with the appropriate taxa.PoriferaV [ Choose ]tetraneury, chambered heartstomochord, pharyngeal gillsaquiferous system (most)notochord, pharyngeal gillsPentaradial symmetry, sea cucumbersacoelomate, nephridiaPolyps, medusaeChordataPlatyheminthesMollusca[ Choose ]Cnidaria[ Choose ]Hemichordata[ Choose ]Echinodermata[ Choose ]>

Porifera : Are a group of animals also known as sponges, as they have pores on their body which form their characteristic water canal system. The canal system is known as the Aquiferous system. This system helps the sponge with food intake, gaseous exchange and also excretion. The pores on the body form canal for influx and efflux of water, meeting at the central cavity of the body. The structure type canal systems can be Ascon, Sycon and Leucon type. Eg. spongilla. Chordata: These organisms show, certain features such as a notochord the most important one, a dorsal hollow nerve cord, post-anal tail, pharyngeal slits and thyroid gland. These include subphyla Tunicata, Cephalochordata and Vertebrata. Eg. Mammals, birds, reptiles, amphibians and fish. Platyhelminthes : These are soft-bodied flatworms, they are bilateral, triploblastic, acoelomate. They are free living and also parasitic. Their body is unsegmented, show hooks and suckers for attachment to the host: flame cell and protonephridia for excretion. Mollusca: Largest marine phylum, they have a mantle cavity for breathing and excretion, the show characteristic tetraneury nervous system and three-chambered heart. For eg. octopus .Cnidaria: These are animals such as jellyfish, hydra, corals etc. they are diploblastic animals, show radial symmetry, cnidoblasts and show polymorphism i.e. two body forms which are polyps and medusa. Hemichordates: Triploblastic, bilaterally symmetrical animals, marine, have true coelom and show a flexible, hollow tube similar to the notochord called stomochord. Echinodermata: they show hard, spiny skin or sea cucumber which are soft-bodied, they have water vascular system, triploblastic, coelomic and radial symmetry. For eg. starfish, sea urchins. Porifera : Aquiferous sysemChordata: Notochord, pharyngeal gills.Platyhelminthes : Acoelomate, protonephridiaMollusca: tetraneury, three chambered heartCnidaria: Polyps and medusaeHemichordates: Stomochord, pharyngeal gillsEchinodermata: Pentaradial symmetry, sea cucumbers