Chapter 27, Problem 34A

Summary Introduction

To write:

A poem on my favorite Echinoderm.

Introduction:

The echinoderm is classified into 5 classes: Asteroidea (sea stars), Ophiuroidea (brittle stars), Echinoidea (sea urchins and sand dollars), Crinoidea (sea lilies or feather stars), and Holothuroidea (sea cucumbers).

Explanation of Solution

Taking favorite echinoderm as Sea Cucumbers, here is the poem to describe its features.

Most distinct class of Echinoderms

Has a long body with no arms,

That’s how they make their charm.

Respiratory system is present in them,

Plankton, Algae are there to feed them.

There are 1000 species of Sea cucumber,

Their range starts from few centimeters.

Conclusion

Sea cucumber has around five to twenty tentacles that surrounds the mouth.