Chapter 31, Problem 3TC

Summary Introduction

To analyze:

The reason that the coelomates outnumber the acoelomates in terms of species diversity.

Introduction:

The coelom refers to the prime cavity of the body in the majority of animals and is situated within the body to envelop and comprises the digestive tract and other organs. In well-evolved animals, it is lined with a mesodermal epithelium. In other animals, like mollusks, it remains indistinguishable. Coelomata or coelomate animals exhibit a true body cavity known as a coelom with a complete lining known as peritoneum obtained from mesoderm.