Zoology CSS Paper I 2011

(PART-1 MCQs) 30 Minutes MAXIMUM MARKS: 20
(PART—II) 2:30 Hours MAXIMUM MARKS: 80
NOTE: (i) First attempt PART-I (MCQs) on separate Answer Sheet which shall be taken back after 30 minutes.
(ii) Overwriting/cutting of the options/answers will not be given credit.
Q.1: Select the best option / answer and fill in the appropriate box on the Answer Sheet. (1 x20=20)

(i) The disease causing protozoan is:
(a) Amoeba (b) Paramecium (c) Stentor (d) Trypanosoma (e) None of these

(ii) Binucleate protozoan is:
(a) Mastigo-amoeba (b) Toxoplasma (c) Didymium (d) Trichonympha (e) None of these

(iii) Spicules in sponges are secreted by cells called:
(a) Chromocytes (b) Thesocytes (c) Scleroblasts (d) Spongoblast (e) None of these

(iv) Which one of the following coelenterate is also called Portuguese-man of war:
(a) Hydra (b) Velella (c) Obelia (d) Physalia (e) None of these

(v) Pseudoeoelomate animals are:
(a) Coelenterates (b) Nematodes (c) Annelids (d) Arthropods (e) None of these

(vi) Earthworm belongs to:
(a) Phylum platyhelminthes (b) Nematode (c) Mollusca (d) Arthropoda (e) None of these

(vii) The number of arms in octopus is:
(a) Four (b) Six (c) Eight (d) Ten (e) None of these

(viii)The excretory organ of cockroach is:
(a) Flame cell (b) Nephridia (c) Coxal gland (d) Green gland (e) None of these

(xv) Which one of the following is not an extraembryonic membranes?
(a) Pleura (b) Amnion (c) Chorion (d) Allantois (e) None of these

(xvi) The egg laying mammals such as Duck billed platypus and spiny anteater are found in:
(a) Asia (b) North America (c) South America (d) Australia (e) None of these

(xvii) Renal portal system is absent in:
(a) Mammals (b) Fish (c) Amphibian (d) Reptiles (e) None of these

(xviii) Swim bladder is present in:
(a) Amphibia (b) Giant turtle (c) Sea snake (d) All of these (e) None of these

(xix) Diencephalons is a part of:
(a) Circulatory system (b) Excretory system (c) Nervous system (d) Respiratory system (e) None of these

(xx) Microlecithal egg is found in:
(a) Reptiles (b) Birds (c) Amphibian (d) All of these (e) None of these

(ix) The compound eyes are present in:
(a) Cuttlefish (b) Sea urchin (c) Sea mouse (d) Honey bee (e) None of these

(x) Balanoglossus belongs to:
(a) Hemichordata (b) Cephalochordata (c) Urochordata (d) Craniata (e) None of these

(xi) The extinct vertebrates are:
(a) Elasmobranchii (b) Placodenni (c) Osteichthyes (d) All of these (e) None of these

(xii) The type of scales found in shark is:
(a) Placoid scale (b) Ganoid scale (c) Cosmoid scale (d) Cycloid scale (e) None of these

(xiii) All of the following animals have three chamber heart except:
(a) Uromastyx (b) Snake (c) Wall lizard (d) Crocodile (e) None of these

(xiv) An animal group having radially symmetrical adults but bilaterally lance are:
(a) Annelids (b) Echinoderm (c) Chordates (d) All of these (e) None of these

NOTE: (i) PART II is to be attempted on separate Answer Book.
(ii) Attempt ONLY FOUR questions from PART II, selecting TWO questions from each SECTION. All questions carry EQUAL marks.
(iii) Extra attempt of any question or any part of the attempted question will not be considered.


Q.2: (a) Describe reproduction in paramecium. (10)
(b) Explain the different kinds of spicules in ponfera. (10)

Q.3: (a) Discuss polymorphism in coelenterates. (10)
(b) Explain the life cycle of obelia. (10)

Q.4: (a) What are platyhelminthes? (10)
(b) Describe the life cycle of any medically important platyhelminthes. (10)

Q.5: Write short notes on: (5 x 4 = 20)
(a) Metamerism (b) Mouth parts of insects (c) Foot in Mollusca (d) Larvae of Echinoderm


Q.6: (a) Give an account of arterial system of pigeon. (10)
(b) Explain hepatic portal system. (10)

Q.7: (a) What is Gastrulation? Describe gastrulation in frog. (10)
(b) Write an essay on parental care in Mammals. (10)

Q.8: Write short notes on the following: (5 x 4=20)
(a) Hairs in Mammals (b) Development of bone (c) Fish migration (d) Egg types


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