Competitive Exams: Zoology MCQs (Practice_Test 79 of 112)

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1. Porifera is characterized by the presence of
   1. Paragastric cavity
   2. Coelom
   3. Pseudocoelom
   4. Coelenteron
2. Coenocytes are arranged in the lining of
   1. Excurrent canal
   2. Incurrent canal
   3. Flagellated chambers
   4. Osculum
3. Free-swimming, polymorphic colonies are characteristic of
   1. Anthozoa
   2. Siphonophora
   3. Ctenophora
   4. Scyphozoa
4. Which of the following pairs are correctly matched?
   1. • Silver
      • Fish
      • Apterygota
   2. • Jelly fish
      • Scyphozoa
   3. • Cuttle fish
      • Pisces
   4. • Cray fish
      • Echinoderm

   Select the correct answer using the codes given below:

   Codes:

   1. 1 and 2
   2. 1 and 3
   3. 1,2 and 4
   4. 2,3 and 4
5. Which one of the following is NOT hermaphroditic?
   1. Fasciola
   2. Opisthorchis
   3. Schistosoma
   4. Gyrodactylus
6. Match List I (Animal) with List II (Group) and select the correct answer using the codes given below the lists:

   List-I	List-II
   Shipworm Bladder worm Round worm Clam-worm	Nematoda Pelecypoda Cestoidea Polychaet

   • A
   • B
   • C
   • D
   1. • 3
      • 2
      • 4
      • 1
   2. • 2
      • 3
      • 1
      • 4
   3. • 3
      • 2
      • 1
      • 4
   4. • 2
      • 3
      • 4
      • 1
7. Metameric segmentation is found in
   1. Pheretima
   2. Trichinella
   3. Wuchereria
   4. Phasmidia
8. Which one of the following sets is characteristic of the class Hinidinea? Clitellum Spermat hecae Fertili zation Develop ment
   1. Absent Absent Internal Direct
   2. Absent Absent External Indirect
   3. Present Present In cocoon Direct
   4. Present Present In cocoon Indirect
9. Which one of the following characterizes Heteronereis stage of Nereis?
   1. Quite, inactive sexual stage
   2. Very active asexual stage
   3. Sexual stage with epitoke which is very active
   4. Asexual stage with epitoke which is very active
10. Match List I with List II and select the correct answer using the codes given, below the lists:

    List-I	List-II
    Branchiopoda Copepoda Chilopoda Diplopoda	Daphnia Scolopendra Cyclops Julus

    • A
    • B
    • C
    • D
    1. • 1
       • 3
       • 4
       • 2
    2. • 3
       • 1
       • 4
       • 2
    3. • 1
       • 3
       • 2
       • 4
    4. • 3
       • 1
       • 2
       • 4
11. Which of the following pairs are correctly matched?
    1. • Two pairs of appendages
       • Crustacea in each segment
    2. • A pair of legs in each
       • Insecta thoracic segment
    3. • A single pair of legs
       • Myriapoda in all the segments except head
    4. • Six pairs of appendages
       • Arachnida in cephalothorax

    Select the correct answer using the codes given below:

    Codes:

    1. 2,3 and 4
    2. l, 2 and 3
    3. 1,2 and 4
    4. l, 3and 4
12. Antedon belongs to the class Crinoidea because
    1. It has calyx for attachment and arms bear pinnules
    2. The mouth is situated orally and the anus is found on the aboral surface
    3. The arms are not distinctly separated from the central disc
    4. The tube feet are present in ambulacral groove
13. Which of the following pair are correctly matched?
    1. • Anapsida
       • Chelonia
    2. • Parapsida
       • Crocodiles
    3. • Diapsida
       • Snakes
    4. • Synapsida
       • Primitive Mammals

    Select the correct answer using the codes given below:

    Codes:

    1. l, 2 and 3
    2. l, 3 and 4
    3. 1,2 and 4
    4. 2,3 and 4
14. Which of the following pairs are correctly matched?
    1. • Parrot
       • Psttaciformes
    2. • Salamander
       • Caudata
    3. • Rabbit
       • Rodentia
    4. • Tortoise
       • Chelonia

    Select the correct answer using the codes given below:

    Codes:

    1. l, 2 and 3
    2. l, 3 and 4
    3. l, 2 and 4
    4. 2,3 and 4
15. Consider the following statements:
    1. Pisces and amphibia can be distinguished from each other on the basis of fundamental differences in the lateral line system
    2. Elasmobranchi and Teleostomi can be distinguished from each other on the basis of endoskeleton
    3. Scoliodon and Torpedo are distinguished on the basis of electric organ though both belong to the class Pisces
    4. Salamandra is distinguishable from

    Bufo on the basis of parotid gland

    Of these statements

    1. 1,2, 3 and 4 are correct
    2. 1 and 4 are correct
    3. 2 and 3 are correct
    4. 2,3 and 4 are correct