SINDH PUBLIC SERVICE COMMISSION, HYDERABAD
Combined Competitive Examination, 2021
Z O O L O G Y
Friday the 25th February, 2022.
Time: 02:30 pm to 05: 30 pm Maximum marks. 100
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Note: Attempt any Five questions. All questions carry equal marks.
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Question No.
01 Define Nutrition? Discuss the various modes of nutrition in protozoans.
02 What is canal system? Describe the significance of canal system in sponges.
03 Classify Platyhelminthes up to class level. Describe the distinguishing characters and medical importance of any one class.
04 Why are insects recognized as successful animals? Write a comprehensive note in favour of the above statement.
05 What is meant by Torsion and Distortion? Discuss the economic importance of Molluscs.
06 What is meant by Chambered Heart? Give a detailed account of double circuit plan of gaseous transport found in mammals with the help of a suitable illustration.
07 Birds are known as glorified reptiles. Explain this statement in terms of evolutionary prospects.
08 Write short notes on the followings:
(A) Write an essay on the mechanism of respiration in amphibians.
(B) Type of cell division that maintains the constant number of chromosomes in species.
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