The phylogeny of the major group of Bilateria. Introduction: The animals are the most abundant living organisms that are found in almost every habitat. They have different forms of diversity, habitat, behavior, and lifestyle. About half million species have been described and several million more are thought to await discovery.

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Chapter 32.6, Problem 2LO

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To describe: The phylogeny of the major group of Bilateria.

Introduction: The animals are the most abundant living organisms that are found in almost every habitat. They have different forms of diversity, habitat, behavior, and lifestyle. About half million species have been described and several million more are thought to await discovery.

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