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2017
Zoology (Major)
Paper:1.2
(Animal Diversity)
Full Marks:60
Time:3 Hours
1. Answer the following questions: 1x7=7
(a) Name a multi-nucleated protozoa.
(b) Name any one type of spicules found in Porifera.
(c) What is the function of statocyst in prawn.
(d) What is Hexacanth ?
(e) Whati is Hermaphroditism ?
(f) Which larva of Mollusca is an Ectoparasite of fishes ?
(g) Name the larval forms of Asterias.
2. Answer the following questions: 2x4=8
(a) What hepatopancreas ? How does it help in digestion in Prawn ?
(b) Write the significance of polymorphism in Siphonophora.
(c) Describe the salient features of Miracidium Larva.
(d) Describe the structure and function of compound eye.
3. Answer any three questions: 5x3=15
(a) Describe the locomotion in Protozoa.
(b) What are Endoparasites ? Describe the parasitic adaptation of Ascaris lumbricoides.
(c) Write note on the larval forms Echinodermata.
(d) Why is Peripatus is known as connecting link between Annelida and Arthropoda ?
(e) Define Pre-erythrocytic schizogony of sporozoite in liver of infected Animal.
4. Answer the following questions: 10x3=30
(a) What is nutrition ? Describe the mode of nutrition in Protozoa with suitable examples. 2+8=10
Or
What is canal system ? Describe the canal system found in sponge with diagram. 3+7=10
(b) Give details of the life cycle, pathogenecity and prophylaxes measures of Ancylostoma duodenale. 6+2+2=10
Or
Describe the life history and parasitic adaptation of Fasciola hepatica. 8+2=10
(c) Describe the salient characters of phylum Mollusca and classify the class Gastropoda up to order with suitable examples. 4+6=10
Or
Write a note on water vascular system in Echinodermata with its significance. 8+2=10
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