Contents

1. Salient Features and Classification opto Order

1. Introduction

2. Hemichordata

3. Urochordata

4. Cephalochordata

2. Salient Features of Classes with Examples

1. Pisces  

2. Amphibia

3. Study of Frog

1. Systematic Position 

2. External Characters and Sexual Dimorphism   

3. Digestive System    

4. Circulatory System  

5. Central Nervous System    

6. Sense Organs  

7. Reproductive System

4. General Topics

1. Migration in Fishes 

2. Neoteny in Amphibian

3. Parental Care in Amphibian