Chapter 32.1, Problem 3R

Summary Introduction

To review:

The major groups of deuterostomes. The groups in which each of the following will be placed: sea stars, humans, acorn worms, tunas, and rattlesnakes.

Introduction:

Deuterostomes are the class of organisms, which include aquatic as well as terrestrial animals. The animals under this class are triploblastic and possess coelom with a distinct mouth and anus openings placed at opposite ends in the body.