We have great pleasure in placing this book "Zoology" for B.Sc. Zoology third semester students. This book has been completed exclusively as per the CBSC pattern syllabus of Gondwana University, Gadchiroli.

The present syllabus of third semester made as per the UGC norms. The new framework of syllabus is quite precise and valuable to the students. The main purpose of writing this book is to present the subject matter in a concise and easily understandable form centralizing the basic need of the students.

This book includes-

Part-I - Animal Diversity (Chordates) And Comparative Anatomy (Core Paper-V)

Part-II - Physiology And Biochemistry (Core Paper-VI)

Part-III - Practical Zoology based on Paper I and II

Topic wise precise presentation according to paper question pattern in the exclusive feature of this book. Several necessary and illustrative diagrams have been included in the text in the text which help students to understand and grasp the idea quickly and easily. In current syllabus paper pattern scheme is changed by the university. Accordingly, at the end of each unit the question bank is given to facilitate students while writing the answers.

Contents -

Paper - I : Animal Diversity (Chordates) And Comparative Anatomy
Unit -I
1.1 Urochordata- General characters, Ascidian tadpole and retrogressive metamorphosis
1.2 Cephoalochordata- General characters, Amphioxus - External morphology and digestive system.
1.3 Cyclostomata- General characters, external morphology of petromyzon and myxine.
1.4 Pisces- General characters and Classification up to order; Osmoregulation in Fishes, Accessory respiratory organs.
Unit - II
2.1 Amphibia- General characters and Classification up to order, Parental care and Neoteny.
2.2 Reptilia- General characters and classifications based on temporal vacuities. Snake venom, Poison apparatus & biting mechanism, Poisonous and non poisonous snake
Unit - III
3.1 Aves- General characters and Classification up to order. Flight, Birds migration and its significance
3.2 Mammals- General characters and Classification up to order. Prototheria, Metatheria and Eutheria.
Unit - IV : Comparative Anatomy
4.1 Mechanism of Respiration
4.2 Transport of O2 and CO2
4.3 Respiratory pigments
4.4 Effect of smoking
4.5 Respiratory disorders