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Zoology Past Papers 2020

(@manzoor1)
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FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
IN BPS–17, UNDER THE FEDERAL GOVERNMENT, 2020
 
ZOOLOGY
 
 
PAPER–II
 
Q. No. 2. Explain in detail the circulation, gas exchange and temperature regulation in reptiles. (20)
 
 
Q. No. 3. Describe various hormones of the mammalian adrenal gland with their functions. (20)
 
 
Q. No. 4. Write a detailed account on maintenance functions of class Arachnida. (20)
 
 
Q. No. 5. Define linked genes. Explain in detail the inheritance of X-linked recessive genes. (20)
 
 
Q. No. 6. Explain the body wall, digestion, nervous system and sensory organs of flat worms. (20)
 
 
Q. No. 7. How does excretion and osmoregulation occur in mammals? (20)
 
Q. No. 8. Write short notes on any FOUR of the following: (05 each)
(a) Hardy-Weinberg theorem
(b) Sedimentary cycle
(c) Metamerism
(d) Mechanism of neuron action
(e) Invertebrate sensory receptors
(f) Gas exchange in Mammals
 
 

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Topic starter Posted : August 22, 2026 1:52 pm
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