KHYBER PAKHTUNKHWA PUBLIC SERVICE COMMISSION
WRITTEN EXAMINATION FOR THE POSTS OF PMS OFFICER / AETO BPS-17
(2025)
ZOOLOGY (PAPER-I)
Time Allowed: 03 Hours Total Marks: 100
Note:- Attempt five questions in all selecting three questions from Part A and two questions from Part B. Draw neat and well-labeled diagrams where required.
PART-A
Q.No.1 Describe the processes of conjugation and autogamy in Protozoa. How do these processes contribute to genetic variability? (20)
Q.No.2 Explain in detail the canal system in Porifera and describe its significance in feeding and respiration. (20)
Q.No.3 Discuss the medical importance of Nematodes with reference to diseases caused by Ascaris, Wuchereria, and Enterobius. (20)
Q.No.4 Describe the structure and function of the water vascular system in Echinodermata. (20)
PART-B
Q.No.5 Describe the biting mechanism of snakes, explaining the structural modifications of the skull, teeth, and venom apparatus. (20)
Q.No.6 Compare the structure and function of the skeletal systems in different classes of Chordates. Use diagrams where appropriate to illustrate the differences. (20)
Q.No.7 Describe the natural history and adaptations of various classes of Chordates. Discuss how these adaptations are related to their mode of life and ecological niches. (20)