FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2005.
ZOOLOGY, PAPER – I
TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100
NOTE: Attempt FIVE questions in all, including question No. 7 which is COMPULSORY. Select at least TWO QUESTIONS from each of the SECTIONS ‘I’ AND ‘II’. All questions carry EQUAL marks.
SECTION ‘I’
- (a) Write a brief account on conjugation in protozoa.
(b) Porifera is a group falling at just above the colonial level of organization,comments.
(c) “Corals are distributed over a wide range,yet coral reefs are present in selected areas”.Discuss. -
(a) Parasitism leads to the development of some characters and withdrawal of some other characters. discuss the statement with reference to platyhelminthes.
(b) Write a brief account of shell in mollusca.
(c) water vascilar system is the life line in Echinodermata.Comment the statement: -
write notes on the following:
(a) Metameric segmentation (b) Respiration in Arthopodes (c) Pseudocoelom d) Enterocoelomates
SECTION ‘II’
- (a) Discuss retrogressive metamorphosis with reference to Ascidians.
(b) “Amphioxus is an ideal chordate”.Discuss the statement. -
(a) Skeleton in petromyzon is at very initial stage of development. Justify the statement.
(b) Heat gradually evolved into a more efficient pumping organ in different chordate groups.” Explain the statement. -
(a) Write an essay on migration in birds, with special reference to Pakistan.
(b) Discuss the different type of eggs found in different chordate groups.
Compulsory Question
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Write only the correct answer in the answer book.Do Not reproduce the question.
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Coelom is the body cavity originating from
(a) ectoderm (b) mesoderm (c) endoderm (d) None of these -
Cytopharynx is the structure present in
(a) Amoeba (b) paramecium (c) Euglena (d) foraminifera (e) None of these -
Gemmules are the reproductive structures produced in
(a) sponges (b) Annelids (c)Arthropods (d) coelentrates -
Comb plates are very specific structures of
(a) coelentrates (b) Arthropoda (c) ctenophora (d) None of these -
nerve net is present in coelentrates at
(a) in endodermis (b) below upper epidermis (c)in mesoglea d) not present in coelentrates -
Circulatory system in insects is
(a) Closed type (b) open type (c) lymphic type d) All of these -
silk is produced by silkworm
(a) larwa (b) adult (c) pupa (d) All of these -
The basic function of a flame cell is
(a) excetion (b) osmoregulation (c) digestion (d) None of these -
The scale in fishes are
(a) ectodermal (b)endodermal (c) mesodermal d) different in different fishes -
The neck of a camel has vertebras:
(a) 14 (b) 9 (c) 7 d) 20 (e) None of these -
Spiders are Arachnids and they have legs
(a) 6 (b) 8 (c) 9 (d) None of these -
Gill slits in chordates are present in
(a) mouth (b) pharynx (c) oesophagus d) All of these -
Birds are flying and have ovaries
(a) one on right side (b) both on right and left side (c) one on any side d) one on left side -
Adult echinoderm has symmetry
(a) Bilateral (b) radial (c) both a and b (d) None of these -
The typical characters of all mammals is
(a) mammary glands (b) brain (c) hair d) All of these -
Mouth in shark is located
(a) dorsal (b) ventral (c) anterior end (d) None of these -
The number of ribs in frog are
(a) 4 (b) 6 (c) 8 (d) None of these -
Earthworm are dissected from side
(a) Dorsal (b) ventral (c) both a and b d) lateral -
Duck billed platypus is a
(a) Bird (b) placental mammal (c) monotreme d) Marsupial -
Silver fish is a member of
(a) pisces (b) insects (c) echinodermata (d) None of these