Vertebrate animals

This book consists of nine chapters. The main concern of this book is to show the following: Classification of Phylum Chordata, general characters of Hemichordata (Blanoglossa), Urochordata (Ascidia; the digestive, circulatory, genital and nervous systems, and development), and Cephalochordata (Amphioxus, the digestive, skeleton, circulatory, excretory, nervous, and genital systems). Also, this book displays the general characters of vertebrata: Agnathostomata (Cyclostomata; Petromyzon) and Agnathostomata (Ostracoderm), and Gnathostomata.
The general characters of chondrichthyes (dogfish), osteichthyes (tilapia), amphibia (Frog), reptilia (Lizard), aves (Pigeon; types of feathers, the digestive system, and urogenital systems), and mammals (Rabbit; the digestive, respiratory, urinary, and reproductive systems) will be addressed. Finally, this book shows the causes of diversity in vertebrates.