Chapter 26.1, Problem 5MI

Summary Introduction

To compare:

The arthropods to annelids by listing the characteristics in the given table.

Introduction:

Arthropods have segmented bodies and tough exoskeletons with jointed appendages.About 70 to 85 percent of all named animals are arthropods. Majority of species belonging to this phylum are insects which include moths, beetles, butterflies, bees and wasps.

Answer to Problem 5MI

  

Explanation of Solution

Animals belonging to the phylum Annelida have segmented bodies. Annelids include earthworms, leeches and marine worms.The body of an annelid is divided into segments. Arthropods also have segmented bodies. Both annelids and arthropods have bilateral symmetry, coelomate body cavities andshow protostome development.

They differ from annelids in having tough exoskeletons with jointed appendages that help them to move in complex ways.