Exploring the Animal world — DU B.Sc. (Hons.) Zoology Previous Year Question Papers

4. Give a suitable diagram where applicable. 1. (a) Define the following : (3×1=3) (ii) Collar cells (iii) Triploblastic (b) Distinguish Between : (3×2=6) (i) Cilia and Flagella (ii) Pinocytosis and Phagocytosis (iii) Operculum and Gill slits (c) Give the location of following organs : (i) Swim Bladder (ii) Flame cells (iii) Nephridia (iv) Ampulla of Lorenzinii (d) Give Scientific name of the following animal : (i) Tapeworm 2. Why Arthropoda considered a successful Phylum ? Describe in detail vision in artropoda? (15) 3. What are the distinguishable characters of phylum Echinodermata? Elaborate the water vascular system in starfish? (15) 4. What is a Vertebrate, give its general characteristics? Mention the terrestrial adaptations of Amphibians? (15) 5. Write short note on (any three) : (15) (a) Pearl Formation (c) Flight Adaptations in Birds (d) Poisonous and Non-Poisonous Snakes