Chapter 31, Problem 14TYK

Summary Introduction

To review:

A hypothesis that states eating mollusks develop mild to severe gastrointestinal infections.

Introduction:

The invertebrate animals lack the vertebral column and it includes arthropods, mollusks, annelids, and Porifera. The body of mollusks is divided into head, visceral mass, and foot. All animals have evolved from a common ancestor of colonial, flagellated protist.