Chapter 18, Problem 6RQ

Summary Introduction

To explain: The feature of the body-wall muscles in nematodes, which requires a high hydrostatic pressure in the pseudocoelomic fluid for efficient function.

Introduction: Ecdysozoans are a group of protostome animals that include nematodes, arthropods, and numerous smaller phyla. The nematodes are commonly known as roundworms that belong to the phylum Nematoda. The nematodes inhabit different environments ranging from terrestrial to marine environments.