Zoology CSS Paper I 2007

FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
IN BPS–17, UNDER THE FEDERAL GOVERNMENT, 2007

ZOOLOGY, PAPER I
TIME ALLOWED: THREE HOURS MAXIMUM MARKS: 100
NOTE: (i) Attempt ONLY FIVE questions in all, including QUESTION NO.7, which is COMPULSORY.
All questions carry EQUAL marks. Select any TWO questions each from SECTION-I and SECTION-II.
(ii) Extra attempt of any question or any part of the attempted question will not be considered.
(iii) Candidate must draw two straight lines ( ) at the end to separate each
question attempted in Answer Books.

SECTION – I

Q.1. (a) Canal system is found in Porifera, explain its types & significance. (8)
(b) In insects respiration is through tracheal tubes, explain its structure along with its working. (6)
(c) Describe structure and Types of foot in Mollusca. (6)

Q.2. (a) How Platyhelminthes are adapted for Parasitic mode of life. (7)
(b) Describe complete Metamorphosis in an insect. (7)
(c) Some Protozoa are medicinally important, explain at least three such Protozoan.(6)

Q.3. Write note on the following: (5 each)
(a) Water vascular system in Echinodermata (b) Corals (c) Trochophore larva (d) Shell in Mollusca

SECTION – II

Q.4. (a) Amount of yolk determine the cleavage type, describe various types of cleavages found in vertebrates. (7)
(b) Describe Placentation in mammals, explain various types. (7)
(c) Differentiate between the scale of fishes and Reptiles. (6)

Q.5. (a) How vertebrate kidney was evolved. (10)
(b) How Birds migrate, explain various factors, which are involved in their migration. (10)

Q.6. Write note on the following: (5 each)
(a) Amphioxus (b) Amphibian Heart (c) Gastrulation in birds (d) Snake biting

COMPULSORY QUESTION

Q.7. Write only the correct answer in the Answer Book. Do not reproduce the question.

(1) The autonomic nervous system comprises of:
(a) Sympathetic nervous system (b) Para-sympathetic nervous system (c) Both (a) and (b) (d) None of these

(2) In Turtles, the dorsal plate is known as:
(a) carapace (b) Plastron (c) scutes (d) None of these

(3) The odd-toed ungulates are termed as:
(a) Perissodactyls (b) Artiodactyls (c) Paradactyls (d) All of these

(4) The functional kidney of adult fishes is:
(a) Pronephros (b) Mesonephros (c) Metanephros (d) None of these

(5) The telencephalon & diencephalons are part of:
(a) Mid-brain (b) Hind brain (c) Fore brain (d) All of these

(6) The sense organs of taste in tongue are known as:
(a) Olfactoreceptors (b) Gustatoreceptors (c) cutaneous receptors (d) All of these

(7) The process of cartilage formation is known as:
(a) chondrioblasts (b) Chondriocytosis (c) chondriogenesis (d) None of these

(8) Significant flight muscles in birds is:
(a) Pectoral (b) Appendicular (c) Tensor (d) All of these

(9) Typical character of a mammal is:
(a) Hairs (b) Mammary glands (c) Only (a) (d) Both (a) and (b)

(10) Body wall of obelia is:
(a) Monoblastic (b) Diploblastic (c) Triploblastic (d) None of these

(11) The arrangement of the organs of an animal in a series of similar units along the longitudinal axis of the body is called:
(a) Pseudometamerism (b) Parametamerism (c) Metamerism (d) Pro Metamerism

(12) The white blood corpuscles of the cockroach are called as:
(a) Haematocyte (b) Haematoclast (c) Haemoblast (d) Leucocyte

(13) Hormone which control molting in insects is:
(a) cardisone (b) ecdysone (c) ecdycortisone (d) None of these

(14) In Sycon water leave the sponge through:
(a) ostia (b) osculum (c) Madreporite (d) All of these

(15) Flame cells are commonly found in:
(a) Platyhelminthes (b) Annelida (c) Coelenterata (d) All of these

(16) The number of vertebrae in horse neck are:
(a) 5 (b) 6 (c) 7 (d) 10

(17) The group in which RBC’s are mostly non-nucleated:
(a) Amphibians (b) Birds (c) Mammals (d) All of these

(18) Cockroach is dissected from side:
(a) dorsal (b) ventral (c) Lateral (d) Both (a) and (b)

(19) Heart of fish is:
(a) Open (b) Single circuit (c) Double circuit (d) Both (b) and (c)

(20) Round worms belong to:
(a) Platyhelminthes (b) Annelida (c) Centipedesa (d) None of these

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