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Phylum Protozoa
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Characteristics
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The body is non cellular with one or more nuclei.
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The body is non-symmetrical, but bilateral, spherical or radial in shape
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The body is covered with pellicle
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Class
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Rhizopoda
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Mastigophora
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Sporozoa
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Ciliata
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Suctoria
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Phylum Porifera
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| Characteristics |
The body is non cellular and diploplastic
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The shape is variable and plant like
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The surface is covered with minute pores called astia
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| The canal system is present |
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Class
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Calcaria
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Hexactinalida
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Demospongia
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Phylum Coelenteata
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| Characteristics |
The body is diploplastic and has radial symmetry
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The mouth is encircled by tentacles
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Class
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Hydrozoa
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Scyphozoa
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Anthozoa
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iPhylum Platyhelminthes
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| Characteristics |
The body has bilateral symmetry
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The body shape is worm-like, may vary as ribbon like or broad leaf like
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It excretes through protonephridia
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Class
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Turbellaria
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Trematoda
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Cestoda
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Phylum Annelida
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Characteristics
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The body is triploplastic and has bilateral symmetry
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The external body is segmented like a worm body
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The internal body is divided by a number of annuli
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Class
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Polychaeta
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Oligochaeta
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Hirudinea
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Archiannelida
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Phylum Anthropoda
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Characteristics
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The body is divided into head, thorax, and abdomen
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The legs are jointed for walking and wings for flying
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Sex is generally separated
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Class
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Mesostomata
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Arachnida
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Crustacea
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Diplopoda
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Chilopoda
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Insecta
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Phylum Mollusca
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Characteristics
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They are soft bodied
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The body has bilateral symmetry
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A monovalvular or bivalvular shell might be present or absent
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Class
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Monoplacophora
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Pelacpoda
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Amphineura
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Cphalopoda
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Scaphopoda
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Gastropoda
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Phylum Ecinodermata
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Characteristics
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The body has radial symmetry
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The body surface is pentamerous
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The skeleton has dermal spines or dermal calcarious stipules
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Class
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Asteroida
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Ophiuroidea
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Echinoidea
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Holothuroidea
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Crinoidea
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Phylum Chordata
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| Characteristics |
Cranium and vertebral column is present
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Notocord and dorsal tubular cord is present
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Class
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Fishes
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Amphibia
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Reptilia
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Aves
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Mammals
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