+-----------------------------------------------------------------------------+ | Modern Text Book of Zoology: Invertebrates | +-----------------------------------------------------------------------------+ | | | [Part 1: Lower Non-Chordates] -------> Protozoa to Aschelminthes | | (Microscopic & Pseudocoelomates) | | | | [Part 2: Higher Non-Chordates] -------> Annelida to Echinodermata | | (True Coelomates & Organ Systems) | | | | [Part 3: General Concepts] ----------> Evolutionary Trends, Larval Forms | | & Comparative Anatomy | +-----------------------------------------------------------------------------+ Core Structural Breakdown
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