Chapter 19.5, Problem 4LO

Summary Introduction

To write:

Defining characteristics of fishes, amphibians, reptiles, and mammals

Given:

Vertebrates have different groups- fishes, amphibians, reptiles, and mammals.

Introduction:

Fishes- Fishes are cold blooded and have a backbone, fins, gills, and scales on their body.

Amphibians- Amphibians are cold-blooded animals with smooth, porous and rarely scaled skin. Endoskeleton is present in them. They can live both on land and water.

Reptiles- Reptiles are cold-blooded animals with scales covering the skin. They have four legs or leglike appendages. They live on land.

Mammals- Mammals are warm-blooded animals. They have mammary glands. Hair and sweat glands are present in their body.