Chapter 31.3, Problem 2SB

Summary Introduction

To review:

The type of body cavity present in the ancestral forms of deuterostome.

Introduction:

In Greek, the taxonomic meaning of deuterostome is the second mouth that includes superphylum of animals. It belongs to the phylum Chordata and also a sister clade of protostomes. In Protostomia, the first opening is mouth during embryo development while in deuterostome the first opening is anus and the second is the mouth. Deuterostome comes under the bilateral group.