Maharashtra PSC Exam: Zoology MCQs (Practice_Test 102 of 112)

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  1. Which one of the following pairs is NOT correctly matched?
      • Ascaris lumbricoides
      • Round worm
      • Enterobius vermicularis
      • Pin worm
      • Dracunculus medinensis
      • Filarial worm
      • Plasmodium vivax
      • Malarial parasite
  2. Which one of the following is the correct example for a pseudocoelomate animal?
    1. Tacnia solium
    2. Fasciola hepatica
    3. Schistosoma indicum
    4. Ascaris lumbricoides
  3. The deirids are the
    1. excretory organs situated on the side of the excretory pores of annelids
    2. sense organs situated on each side at the level of excretory pore of mematodes
    3. associated structures near the reproductive organs of annelids
    4. excretory organs of some arthropods
  4. Which one of the following annelids becomes brilliantly luminous in the dark?
    1. Pheretima
    2. Hirudo
    3. Nereis
    4. Chaetopterus
  5. The following tissues exist in the body wall of earthworm
    1. Epidermis
    2. Longitudinal layer of muscles
    3. Circular layer of muscles
    4. Cuticle
    5. Dermis

    The correct sequence of these tissues is:

    1. 2, 1,3, 5,4
    2. 5, 1,2, 4,3
    3. 4, 2,3, 1,5
    4. 4, 1,5, 3,2
  6. A properly preserved moth and butterfly can be distinguished by the
    1. shape of their eye
    2. shape of their wings
    3. structure of their antennae, being, clubshaped in butterfly and uniform in moth
    4. structure of their abdomens, being blunt in butterfly and cone-shaped in moth
  7. Which one of the following forms a connecting link between Annelida and Arthropoda?
    1. Bonellia
    2. Chactopterus
    3. Limulus
    4. Peripartus
  8. Most of the lower aquatic animals such as protozoans, annelids, molluses etc. Are ammonotelic, because
    1. ammonia helps in checking inflow of water into body
    2. excretion of ammonia required large amount of water which is available to these animals
    3. water available to these animals contains less nitrogen
    4. ammonia can be converted into urea
  9. Molluscs with radula having rows of teeth diverging like the ribs of fan belong to
    1. Nudibranchia
    2. Scaphopoda
    3. Rhipidoglossa
    4. Docoglossa
  10. Heterocotylization is a special modification during the breeding season of
    1. Loligo
    2. Octopus
    3. Nautilus
    4. Sepia
  11. Ambulacral grooves are closed in
    1. Ophiuroidea
    2. Holothuroidea
    3. Crinoidea
    4. Echinoidea
  12. Which of the following statements are correct? Amphibians are considered to be intermediate between Pisces and Reptillia because
    1. they possess vertebral column
    2. both gill and pulmonary respiration occur in their life history
    3. oviparity and viviparity are represented
    4. they are poikilothermal animals

    Select the correct answer using the codes given below:

    1. 1 and 3
    2. 2 and 4
    3. 1 and 2
    4. 3 and 4
  13. Presence of notochord, dorsal tubular nerve cord and pharyngeal slits are the three important characters of the phylum Chordata. In which one of the following chordates are all the three characters present in the adult form?
    1. Doliolum
    2. Oikopleura
    3. Branchiostoma
    4. Herdmania
  14. Hatteria or Tuatara is the oldest living lepidosaurian reptile and is known as a living fossil. The generic name of this form is
    1. Tyrannosaurus
    2. Sphenondon
    3. Iguanadon
    4. Stegodon
  15. Which of the following statements regarding mammals are correct?
    1. Mammals have double occipital condyles in their skull.
    2. Left aortic arch is seen in mammals.
    3. Order cetacean includes some aquatic mammals.

    Select the correct answer using the codes given below:

    1. 1 and 2
    2. 2 and 3
    3. 1,2 and 3
    4. 1 and 3

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