ముక్తుడైన సరీసృపాలు మరియు క్షీరదములకు చూపిన సాధారణ లక్షణాలు?

ముక్తుడైన సరీసృపాలు మరియు క్షీరదములకు చూపిన సాధారణ లక్షణాలు?


 EAMCET

  Zoology

 

 K. Srinivasulu

 Sr. Faculty,

 Sri Chaitanya

 Educational Institutions
,

 Hyderabad

 

  Diversity of living world, Structural organisation in animals

 Animal diversity- I (invertebrate phyla)


 

 1.    The animal in which the space between the gut and the body wall is filled with mesenchyma is?

     1) Echinodiscus    2) Enterobius

     3) Eunice        4) Echinococcus

 

 2.    Study the following and choose the correct one:    

     LIST - I    LIST - II     LIST - III

      (animal)    (character)           (class)

   I.     Sea urchin    Aristotle's     Echinoidea

             lantern        

   II.     Sea cucumber    Respiratory      Holothuroidea

              trees                  

   III. Sea biscuit    Anus is     Asteroidea

             absent        

   IV. Sea stars    Pedicellaria       Ophiuroidea

             with two jaws   

     1) II & IV        2) I & III    

     3) II & III        4) I & II

 

 3.    Match the following?

     LIST - I        LIST - II

     A) Planula        i) Unio

     B) Trochophore    ii) Hormiphora

     C) Muller's larva    iii) Rhizostoma

     D) Cydippid larva    iv) Arenicola

     E) Glochidium larva    v) Dugesia

               A     B     C     D     E

     1)  iv     v      iii     ii       i

     2)  v     iv     ii       i       iii

     3)  iii     iv     v       ii       i

     4)  iii     v      i       iii      ii

 

 4.   Read the following?

 I.    Absence of clitellum     

 II.    Presence of cirrus      

 III.    Trochophore larva

 IV.    Parapodia with few setae

 V.    Limited number of gonads

 VI.Absence of gonoducts      

 VII.Gonochoric

     Which among the above are related to clam worm?

     1) I, II & V        2) I, III, VI & VII    3) III, IV & VI        4) II, III & V

 

 5.    Arrange the following arthropodans in ascending order based on the number of legs they possess?

     A) Julus                    B) Lepisma                 

     C) Scolopendra       D) Aranea               

     E) Limulus

     1) B - D - E- C - A    2) B - D - E - A - C    

     3) B - E - D - C - A    4) D -B - E - C - A

 

 6.    Arthropods without antennae and with two pairs of antennae are respectively?

     1.    Crustaceans & Diplopodans                                                     

     2.    Crustaceans & Hexapodans    

     3.    Chelicerates & Crustaceans                                             

     4.    Arachnids & centipedes

 

 7.    Identify the correct  order in the life history of   Neometra?

      1.    Stalked  Pentacrinoid––– Doliolaria––– Adult.

     2.    Stalked  Pentacrinoid––– free swim-ming ophiopleuteus––– Doliolaria ––– adult.

     3.    Doliolaria ––– sessile Pentacrinoid––– Adult.    

     4.    Doliolaria–––Pentacrinoid–––Brachio-laria–––Adult.

 

 8.    Study the following characters of echinoderms.

     A)    Coriaceous skin

     B)    Mouth is surrounded by retractile ten-tacles   

     C)    Loose spicules in dermis

     D)    Absence of Madreporite

     E)    Two jawed pedicellariae

     F)    Tube feet without suckers

     Which of  the above belong to  sea cucumbers?

       1. A, B, C only    2. All except  E    3. B,C,F only        4. All the above

 

 9.    Match the following

      LIST - I (animal)  LIST - II (character)

     A) Spirostreptus    I) Stomochord

     B) Convoluta         II) Captacula

     C) Pontobdella        III) Colloblasts

     D) Pulsellum        IV) Botryoidal tissue

     E) Ptychodera         V) Rhabdites

     F) Pleurobrachia  VI) Gnathochilarium

                               VII) Crystalline style

              A       B       C       D      E       F

     1)    VI      IV      V       III     II       I

     2)    VI      V       IV      II       I       III

     3)    V        I        VII     II      III     IV

     4)    IV      III       II      V      VI      I  

 

 10.    Types of  nephridia which are present in the segments with blood glands in Phe-retima?

     1) Closed & enteronephric type

     2) Open & enteronephric; closed& exone-phric type

     3)    Closed & enteronephric; closed & exo-nephric type

     4)    Open & exonephric; closed & entero-nephric

 

 11.    Correct combination(s) among the following  related to the phylum Arthro-poda

     Class        Character    Example

      I. Crustacea    statocysts    Sarcoptes

     II. Xiphosura    Trilobite larva    Limulus

     III. Diplopoda    poison claws    Julus

     IV. Chilopoda    malphighian     Scutigera

             tubules        

      V. Hexapoda    Tracheae    Lepisma

     1) I, II & IV        2) II, IV &V    

     3) II, III & IV             4) All except I

 

 12. Role of calciferous glands present in the wall of stomach in Pheretima is

     1) Digestion of calcium    

     2) Elimination of calcium

     3) Neutrilisation of humic acid of soil

     4) Absorption of silicates

 

 13.    Assertion A: Growth of nematodes occurs mainly by the increase in the cell size rather than  cell number.

     Reason R: Nematodes show eutely.

     1) Both A and R  are true and R is the correct explanation to A.

     2) Both A and R are true but R does not explains A.

     3) A  is true but R is false    

     4) A is false but R is true

 

 14.    Read the following

     I) Three jawed pedicellariae    

     II)    Aboralmadreporite

     III) Tube feet  without suckers

      IV)     Rigid test/corona

     V)    Absence of arms               

     VI) Openambulacral grooves

     Which of them belong to  the echi-noderms  with  Aristotle's lantern?

        1) I, III, IV & V    2) II, III, IV & V    3) I, II, IV, V        4) All except I

 

 15. Which of the following feature of striped and involuntary muscles help them to show highly resistant to fatigue?

       1) Few molecules of myoglobin        2) Intercalated discs

       3) Numerous sarcosomes            4) Numerous sarcomeres

 

 

 Answers

 1) 4    2) 4    3) 3    4) 2    5) 1    6) 3    7) 3    8) 1    9) 2    10) 3    11) 2    12) 3    13) 1    14) 3    15) 3

 

  Animal Diversity - II (chordata), Locomotion & Reproduction, Biology in Human welfare

 

 1.    Assertion A: Study of the larval features is necessary to establish taxonomic position of ascidians.

     Reason R: Ascidian larva shows retrogre-ssive metamorphosis.

     1)    Both A and R are correct and R explains  A

         2)    Both A and R are correct but R does not explains A

         3)  A is true but R is false    

     4)    A is false but R is true

 

 2.    Read the following

     I.    Nerve cord in chordates is formed by the sinking of median dorsal strip of endoderm above notochord in embryo-nic stage.

     II.    Coelom is secondarily schizocoelic in  higher chordates like vertebrates.

     III.    Occurrence of functional pharyngeal pouches in the early embryonic life of amniotes provides a  clue to their aquatic ancestry.

     IV. Nerve cord is single, dorsal, tubular and ganglionated in chordates while it is ventral, double solid and non  gangli-onated in  non-chordates.

   V.  Notochord is made up of a core of vacuolated cells surrounded by an inner sheath of fibrous and outer elastic connective tissue sheaths.

   VI. Post anal tail in chordates  consists  of  coelom and visceral organs.

     Correct statements are

       1) II & III only    2) II & V only    3) III, IV & V        4) I, IV & V

 

 3.    Match the following

     LIST - I        LIST - II

     A) Betta splendens     I) Angel fish

     B) Carcharodon        II) Sucker fish

      C) Exocoetus        III) Siamese fighting fish

      D) Echeneis        IV) Greatwhite shark

      E) Pterophyllum    V) Flying fish

                 VI) Hammer-headed shark

          A      B    C    D    E

     1)  I      III    V    II         VI

     2)  II      IV    III    V    I

     3)  III      IV    II    V    IV

     4)   III      IV    V    II    IV

 

 4.    Assertion A: Continuous oxygenation of blood and pneumaticity of bones is possible in birds.

     Reason  R: Birds have compact, spongy, undistensible lungs without alveoli

         1)    Both A and R are true  but  R is not the correct explanation to A

     2)    Both A and  R are true and  R is  the correct explanation to A

     3)    A is true but R is false

     4)    A is false but R is true    

 

 5.    Which of the following show discon-tinuous distribution?

     1)     Monotremes, marsupials, lung fishes and birds of palaeognathae

     2)    Marsupials, lung fishes and birds of ratitae

     3)    Lung fishes, rhynchocephalians and birds of palaeognathae

     4)    Monotremes, lung fishes and lizard bird

 

 6.    Common features shown by glorified reptiles and mammals?

        1)    Absence of renal portal system, larynx as voice box, enucleated RBCs

        2) Amphiplatyon vertebrae, presence of left systemic arch only

        3)    Monocondylic skull, reduced renal portal system, atrophied right  ovary and oviduct.

     4) Metanephric kidney, absence of sinus venous and conus arteriosus, double headed ribs.

 

 7.     Mammals with six cervical vertebrae are

         1) Bradypus & Choloepus

     2) Trichechus & Pteropus

         3) Trichechus & Choloepus

     4) Macropus & Pteropus

 

 8.    Match the following

           LIST - I         LIST - II

     A. Pteropus         I) Flying fish

     B. Draco             II) Flying frog

     C. Exocoetus        III) Flying fox

     D. Rhacophorus     IV) Flying lizard

         A    B    C    D

     1)    IV    III    II    I

     2)    III    IV    I    II

     3)    II    I    III    IV

     4)    III    IV     I    II    

 

 

 Answers

 1) 1    2) 2    3) 4    4) 1    5) 2    6) 4    7) 3    8) 4

 

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