CSS Zoology Paper 1 2013

Q.1. (i)  Select the best option/answer and fill in the appropriate Circle on the OMR Answer Sheet. (20x1=20)
(ii) Answers given anywhere, other than OMR Answer Sheet, shall not be considered.
1.  Metamerically segmented worms belong to phylum:
(a)Nematoda  (b)Platyhelminthes  (c) Annelida  (d)None of these
2.  Which of the following is a multiflagellate Protozoa?
(a)Ceratium  (b)Noctiluca  (c) Leishmania  (d)None of these
3.  Spicules are secreted by:
(a)Scleroblasts  (b)Nematoblasts  (c) Endoblasts  (d)None of these
4.  Which of the following is a porous opening through  which water enters the hydrocoel of an
(a)Pedicellaria  (b)Tube feet  (c) Madreporite  (d)None of these
5.  The body cavity of most triploblastic animals formed by splitting the mesoderm into an outer and an
inner layer is called:
(a)Coelentron  (b)Coelom  (c) Colon  (d)None of these
6.  Compound eyes are found in:
(a)Platyhelminthes  (b)Ecinodermate  (c) Mollusca  (d)None of these
7.  Egg-laying mammals are placed in sub class:
(a)Meththeria  (b)Prototheria  (c) Theria  (d)None of these
8.  Open circulatory system is found in:
(a)Birds  (b)Earthworms  (c) Cockroaches  (d)None of these
9.  Bivalve molluscs are usually:
(a)Scavangers  (b)Deposit feeder  (c) Filter feeder  (d)None of these
10.  The pillar or central axis around which the whorls of a gastropod shell are coiled is called:
(a)Columella  (b)Collembola  (c) Colloblasts  (d)None of these
11.  The ninth vertebra of frog is known as:
(a)Cervical  (b)Sacral  (c) Urostyle  (d)None of these
12.  The stage in an embryo in which the primary germ layers have been laid down is called:
(a)Gastrula  (b)Blastula  (c) Morula  (d)None of these
13.  A fish which migrates down river to spawn in the sea is called:
(a)Anadromous  (b)Catadromous  (c) Dromiacea  (d)None of these
14.  Which of the following has four-chambered heart?
(a)Dog fish  (b)Frog  (c) Pigeon  (d)All of these
15.  Facets by which vertebrae articulate with one another are called:
(a)Metapophyses  (b)Parapophyses  (c) Zygopophyses  (d)None of these
16.  The inner membrane of the two foetal membranes in reptiles, birds and mammals is called:
(a)Amnion  (b)Chorion  (c) Peritoneum  (d)None of these
17.  Amphioxus is an example of:
(a)Urochordata  (b)Cyclostomata  (c) Hemichordata  (d)None of these
18.  Filarial worm (genus Wuchereria) belong to phylum:
(a)Nematoda  (b)Platyhelminthes  (c) Annelida  (d)None of these
19.  Notochord is formed from primary:
(a)Ectoderm  (b)Mesoderm  (c) Endoderm  (d)All of these
20.  Shell fish includes:
(a)Shrimp, Crabs and eel fish  (b)Dog fish, crabs and lobsters
(c) Lobsters, crabs and shrimps  (d)All of these
NOTE: (i)  Part-IIis to be attempted on the separate Answer Book.
(ii)Candidate must write Q. No.in the Answer Bookin accordance with Q. No.in the Q. Paper.
(iii)Attempt  ONLY  FOUR  questions from  PART-II, selecting  TWOquestions from  EACH
SECTION. ALL questions carry EQUAL marks.
(iv)  Extra attempt of any question or any part of the attempted question will not be considered.
Q.2.  (a)Give an account of life cycle of Fasciola hepatica.
(b)Describe the various types of larval forms found in crustacea.
Q.3.  (a)  What is the difference between corallite and coral reef? Give a detailed account
of the various forms of coral reefs.
(b)Write an essay on parasitic adaptation in platyhelminthes.
Q.4.  (a)Describe the morphology and microscopic structure of the shell of a gastropod
mollusc such as Pila.
(b)Describe the water vascular system of star fish.
Q.5.  Write short notes on the following:-
(a)  Binary fission in Paramecium  (b)  Flame cells
(c)  Leishmaniasis  (d)Spicules
(5 each) (20)
Q.6.  (a)Describe various types of heart found in the vertebrate.
(b)Give an account of flight adaptation of birds.
Q.7.  (a)Describe the pelvic girdle of frog with the help of labelled diagram.
(b)Give a detailed structure of the eye of frog.
Q.8.  Write short notes on the following:-
(a)  Biting mechanism of snakes  (b)  Placenta
(c)  Fish scales  (d)Neuron
(5 each) (20)


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