The germ layer ‘mesoderm’ is first time formed in?
Platyhelminthes
Cnidaria
Aschelminthes
Porifera
Basis of Classification
Class - Mammalia
Class - Amphibia
Super Class - Pisces
Class - Cyclostomata
Sub Phylum - Cephalochordata
Sub Phylum - Urochordata or Tunicata
Phylum - Chordata
Phylum - Hemichordata
Phylum - Mollusca
Phylum - Echinodermata
Phylum - Cnidaria (Coelenterata)
Phylum - Ctenophora
Phylum - Platyhelminthes
Phylum - Aschelminthes
Phylum - Annelida
Phylum - Anthropoda
General Character
Class - Reptilia
Class - Aves
Class -Aves
Super Class - Pisces
Chordates
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