Invertebrate Zoology

15 Questions

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Invertebrate Zoology

Quiz on invertebrate phylogeny for ocean science bowl


Questions and Answers
  • 1. 
    Which phylum is characterized by choanocytes that create a current to pull in food?
    • A. 

      Cnidaria

    • B. 

      Urochordata

    • C. 

      Platyhelminthes

    • D. 

      Porifera

  • 2. 
    Which class of organisms can eviscerate to escape predators and survive?
    • A. 

      Cephalopoda

    • B. 

      Holothuroidea

    • C. 

      Asteroidea

    • D. 

      Chelicerata

  • 3. 
    On which organism below might you find setae?
    • A. 

      Earthworm

    • B. 

      Sea Star

    • C. 

      Flat worm

    • D. 

      Horseshoe Crab

  • 4. 
    Which phylum is characterized by pentameral symmetry?
    • A. 

      Mollusca

    • B. 

      Ctenophora

    • C. 

      Echinodermata

    • D. 

      Chaetognatha

  • 5. 
    Which of the following worm phyla has a tough outer cuticle that undergoes ecdysis?
    • A. 

      Nematoda

    • B. 

      Annelida

    • C. 

      Platyhelminthes

    • D. 

      Nemertea

  • 6. 
    On which of the following organisms might you find cnidae?
    • A. 

      Comb Jelly

    • B. 

      Sponge

    • C. 

      Brittle Star

    • D. 

      Coral polyp

  • 7. 
    Which of the following is not required to be a chordate?
    • A. 

      Notochord

    • B. 

      Dorsal Hollow Nerve Cord

    • C. 

      Calcified spinal cord

    • D. 

      Muscular Postanal

  • 8. 
    Phylogenetics is the study of:
    • A. 

      DNA

    • B. 

      Relationships between groups of organisms

    • C. 

      Interactions between organisms

    • D. 

      Interactions between living and nonliving things

  • 9. 
    Which phylum includes colonial (and clonal) organisms that encrust on surfaces?
    • A. 

      Bryozoa

    • B. 

      Arthropoda

    • C. 

      Nematoda

    • D. 

      Porifera

  • 10. 
    What is the name for reproduction in which males and females both emit gametes (sex cells) into the water and egg and sperm meet in the water column?
    • A. 

      Hermaphroditism

    • B. 

      External fertilization

    • C. 

      Broadcast spawning

    • D. 

      Cross-pollination

  • 11. 
    Which of the following organisms is NOT an Arthropod?
    • A. 

      Barnacle

    • B. 

      Ophiuroid

    • C. 

      Amphipod

    • D. 

      Shrimp

  • 12. 
    Which of the following organisms is not bilaterally symmetrical?
    • A. 

      Sponge

    • B. 

      Lobster

    • C. 

      Human

    • D. 

      Flat worm

  • 13. 
    Which of the following classes has members with a mutualistic relationship with zooxanthellae?
    • A. 

      Cl. Anthozoa

    • B. 

      Cl. Hydrozoa

    • C. 

      Cl. Bivalvia

    • D. 

      Cl. Aves

  • 14. 
    Which of the following prefixes means "head"?
    • A. 

      Gastro-

    • B. 

      Arthro-

    • C. 

      Seta-

    • D. 

      Cephalo-

  • 15. 
    Which of the following phlya is the largest known on earth (in terms of species number)?
    • A. 

      Chordata

    • B. 

      Arthropoda

    • C. 

      Cnidaria

    • D. 

      Annelida