Quiz  /  NEET MCQ on Porifera

  • 1. 
    This about sponges is true

  • one mouth, innumerable exits
  • innumerable mouths, one exit
  • large spacious stomach
  • spicules are composed of chitin

  • 2. 
    _____________ is the name of the dried skeleton of ‘Venus flower basket’

  • Euplectella
  • Euspongia
  • Leucosolenia
  • Spongila

  • 3. 
    Members of phylum Porifera are

  • Mostly freshwater animals but few are marine entities
  • Mostly marine animals but few are freshwater entities
  • Exclusively freshwater animal
  • Exclusively marine animals

  • 4. 
    Animals lacking excretory, respiratory and circulatory structures are

  • Sponges
  • Tapeworms
  • Liver fluke
  • Threadworms

  • 5. 
    These are ‘multicellular grade’ entity

  • Vertebrates
  • Sponges
  • Prokaryotes
  • Coelenterates

  • 6. 
    The group of animals to which Sycon belongs can be best described as

  • Multicellular having tissue organization, but not a body cavity
  • Unicellular or acellular
  • Multicellular with a gastrovascular cavity
  • Multicellular without any tissue organization

  • 7. 
    Collared, flagellated cells that cover large parts of the inner chambers of sponges, helping water circulation to continue are

  • Porocytes
  • Choanocytes
  • Amoebocytes
  • Pinacocytes

  • 8. 
    This is a flagellated larva of Leucosolenia

  • Maggot
  • Kedia
  • Planula
  • Parenchymula

  • 9. 
    Poriferan evolution from protozoans is evidenced by animals such as

  • Paramecium
  • Euglena
  • Chlamydomonas
  • Proterospongia

  • 10. 
    The chamber common to all the types of the canal system of sponges is

  • Excurrent canal
  • Radial chamber
  • Incurrent canal
  • Paragastric cavity
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