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Chapter 28: Q. 16 (page 776)

The nematode cuticle contains _____.

a. glucose

b. skin cells

c. chitin

d. nerve cells

Short Answer

Expert verified

Option c is the correct answer.

Step by step solution

01

Introduction

The class of roundworms known as Nematoda exhibits a cylindrical shape. These organisms are pseudocoelomates and are distinguished by having a fully functional digestive system. Nematodes' cuticle creates an exterior skeleton that is located outside of their epidermis.

02

The explanation for the correct answer.

The cuticle, an exterior structure present on all nematodes, is essential to their growth and survival. Collagen is the main material in this structure; it is secreted by the hypodermal cells beneath.

03

The explanation for the incorrect options.

Nematodes do not have neurons, glucose, or skin cells in their cuticle since these tissues don't help animals create an exterior skeleton.

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