Explanation Chordates include the major group of animals on the basis of their characteristic feature. All animals have body covering, which differ in their range of protection. The body coverings of animal regulate the temperature of their body. It protects the animals from drying out and retains the body heat. The difference between the body covering of fishes, amphibians, non-avian reptiles, birds, and mammals are as follows: (1) Fishes contain wet and slimy scales on their body derived from keratin protein...

4th Edition

ISBN: 9781266739606

Author: Hoefnagels

Publisher: MCG

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Question

Chapter 21.10, Problem 4MC

Summary Introduction

To determine:

The contrasting feature between the body coverings of fishes, amphibians, non-avian reptiles and birds and mammals.

Concept introduction:

Fishes, amphibians, reptiles, birds and mammals all are included under the group chordates. The characteristic feature of this group is the presence of a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post anal tail. All these animals are protostomes, in which anus develops from first opening in the embryo at gastrulation. All have different body coverings, which provide protection to the body.

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Chapter 21.10, Problem 3MC

Chapter 21.10, Problem 5MC

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Chapter 21 Solutions

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Solution Summary: The author explains the difference between the body coverings of fishes, amphibians, non-avian reptiles and birds and mammals.

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