महावर्ग टेट्रापोडा (Superclass Tetrapoda) Tetrapoda शब्द ग्रीक भाषा के दो शब्दों Tetra तथा Poda से बना है। Tetra का अर्थ चार (Four), Poda का अर्थ पाद (Limb) ...
Hamid Ali
महावर्ग पिसीज (Superclass Pisces) इस महावर्ग के सदस्य वास्तविक मछलियाँ (True fishes) कहलाती है। मछलियों के अध्धयन को इक्थियोलॉजी (Icthyology) कहते है। ...
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