Assam University 2007 B.Sc Zoology TDC Part-I Honours --- Second - Question Paper

NTS-07/ ZOOH-2 /056

2007
ZOOLOGY (Honours)
Second Paper
(Biology and Functional Anatomy of Non-chordates and Chordates of Advanced Level and Comparative Anatomy)
TDC Part-I (New Course)

Full Marks : 70
Pass Marks : 21

Time : three hours

The figure in the margin shows full marks for the ques.

ans all ques.


1. Write the distinctive characters of Ctenophora. explain its affinities with other phyla.6+8=14
Or
provide an account of the mechanism of flight in insects. 14

2. What do you understand by accessory respiratory organ? define the accessory respiratory organs in fishes with suitable diagrams. Why is air bladder called a hydrostatic organ? 2+(7+3)+2= 14
Or
provide the names of residing Dipnoans. define the general characters and distribution of
Dipnoi. 2+12=14

3. Describe the process of digestion of carbohydrates and proteins in mammals. 7+7=14
Or
describe respiration. define the transport of oxygen and carbon dioxide in blood during
respiration. 2+(6+6)=14

4. provide an account of comparative anatomy of heart in vertebrates with improper tagged
sketches. 10+4 = 14
Or
define the structural characteristics of the respiratory organs obtained in Amphibia,
Birds and Mammals with neat sketches. 14

5. Briefly define the structure and functions of a mammalian eye. provide diagrams. Mention
how it differs from an arthropod eye. (5+4)+3+2 = 14
Or
Write short notes on : 7+7 = 14
(a) Mechanoreceptors
(b) Thermo receptors


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Earning:   Approval pending.