Zoology Final Exam

102 Questions | Total Attempts: 269

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Zoology Quizzes & Trivia

Questions and Answers
  • 1. 
    The structure of mollusks that forms the shell and houses the gills is the
    • A. 

      Mantle

    • B. 

      Gastrovascular Cavity

    • C. 

      Epidermis

    • D. 

      Visceral mass

    • E. 

      Periostracum

  • 2. 
    The kidneys of mollusks both excrete waste and remove excess water, This type of kidney is called a
    • A. 

      Postnephridia

    • B. 

      Mesonephridia

    • C. 

      Metanephridia

    • D. 

      Protonephridia

    • E. 

      Notanephridia

  • 3. 
    The portion of the radula that supports the teeth and is cartilaginous is called the
    • A. 

      Spicule

    • B. 

      Odontophore

    • C. 

      Radula Muscles

    • D. 

      Pen

    • E. 

      Collumella

  • 4. 
    The structure of mollusks that forms the shell and houses the gills is the 
    • A. 

      Mantle

    • B. 

      Gastrovascular cavity

    • C. 

      Epidermis

    • D. 

      Viscedral mass

    • E. 

      Periostracum

  • 5. 
    The first larval stage that is typical of mollusks is the 
    • A. 

      Planula

    • B. 

      Actinotroph

    • C. 

      Veliger

    • D. 

      Trochophore

    • E. 

      Glochidium

  • 6. 
    A mollusks shell is made of three layers arranged from the outside to the inside
    • A. 

      Mantle layer, prismatic layer, periostracum

    • B. 

      Prismatic layer, periostracum, mantle layer

    • C. 

      Periostracum, prismatic layer, nacreous layer

    • D. 

      Nacreous layer, periostracum, mantle layer

    • E. 

      Periostracum, nacreous layer, prismatic layer

  • 7. 
    The structure that is used for feeding in most mollusks is the
    • A. 

      Buccal cavity

    • B. 

      Mouth

    • C. 

      Radula

    • D. 

      Odontophore

    • E. 

      Gilles

  • 8. 
    The body of a typical mollusk can be divided into two main sections the
    • A. 

      Head and foot

    • B. 

      Head and mantle

    • C. 

      Mantle cavity and foot

    • D. 

      Head-foot and mantle

    • E. 

      Head-foot and visceral mass

  • 9. 
    Which of the following is not used by mollusks for the purpose of respiration?
    • A. 

      Gills

    • B. 

      Mantle

    • C. 

      Ctendia

    • D. 

      Lung

    • E. 

      Visceral mass

  • 10. 
    Which of the following is not a modified version of the foot?
    • A. 

      Fins

    • B. 

      Tentacles

    • C. 

      Arms

    • D. 

      Siphon

  • 11. 
    A mollusk that is a univalve with one opening to the shell or does not have a shell and shows torsion to some extent is in the class
    • A. 

      Scaphopoda

    • B. 

      Gastropoda

    • C. 

      Bivalvia

    • D. 

      Cephalopoda

    • E. 

      Mollusca

  • 12. 
    Torsion is a process that rotates _______________ of the body of gastropods.
    • A. 

      Surface

    • B. 

      Mantle

    • C. 

      Viscera

    • D. 

      Tentacles

    • E. 

      Shell

  • 13. 
    Some gastropods have a horny plate that covers the shell aperture; this structure is called a (an)
    • A. 

      Osmoradia

    • B. 

      Osphradia

    • C. 

      Operculum

    • D. 

      Olid

    • E. 

      Oocap

  • 14. 
    The shells of gastropods usually twist to the right.  This is known as
    • A. 

      A coil

    • B. 

      A whorl

    • C. 

      Sinistral

    • D. 

      Dextral

    • E. 

      Ambidextral

  • 15. 
    The adaption of bivalves to a sedentary, filter feeding lifestyle that exploits the sand of a beach as a habitat has lead to the loss of the ______________ and the radula.
    • A. 

      Head

    • B. 

      Foot

    • C. 

      Mantle

    • D. 

      Visceral mass

    • E. 

      Gills

  • 16. 
    The major group of gastropods known as the Pulmonates are more commonly known as
    • A. 

      Sea slugs and hares

    • B. 

      Limpets and conch

    • C. 

      Snails and slugs

    • D. 

      Albalones

    • E. 

      Nudibranchs

  • 17. 
    A mollusk that has a shell of two valves and is usually a filter feeder is a 
    • A. 

      Scaphopoda

    • B. 

      Gastropoda

    • C. 

      Bivalvia

    • D. 

      Cephalopoda

    • E. 

      Mollusca

  • 18. 
    Where would you locate the pericardial cavity when dissecting a mollusk such as a clam?
    • A. 

      Between the mantle and the shell

    • B. 

      All of the area enclosed by the two shells and exposed when you open the shell

    • C. 

      The area around the heart

    • D. 

      The cavities inside the siphons

    • E. 

      The space inside the small tubules that form the gills

  • 19. 
    Mollusks such as a clam breath by passing water in which of the following paths
    • A. 

      Incurrent siphon, suprabranchial chamber, gills, excurrent siphon

    • B. 

      Incurrent siphon, gills, suprabranchial chamber, excurrent siphon

    • C. 

      Incurrent siphon, gills, excurrent siphon

    • D. 

      Incurrent siphon, mantle, gills, excurrent siphon

    • E. 

      Incurrent siphon, gills, mantle, excurrent siphon

  • 20. 
    A mollusk that is an active predator, has tentacles, and is marine would be in the class
    • A. 

      Scaphopoda

    • B. 

      Gastropoda

    • C. 

      Bivalvia

    • D. 

      Cephalopoda

    • E. 

      Mollusca

  • 21. 
    The jet propulsion method of swimming that is seen in squid is accomplished by forcing water from the mantle cavity through a 
    • A. 

      Siphuncle

    • B. 

      Radula

    • C. 

      Excurrent siphon

    • D. 

      Funnel

    • E. 

      Blow hole

  • 22. 
    A cephalopod that has an external shell and represents a group that is mostly extinct would be a 
    • A. 

      Giant squid

    • B. 

      Cuttlefish

    • C. 

      Nautilus

    • D. 

      Ammonoid

    • E. 

      Octopus

  • 23. 
    The water current in the body of a cephalopod provides
    • A. 

      Oxygen for respiration

    • B. 

      Jet power for rapid locomotion

    • C. 

      A means of carrying wastes and gametes out of the body

    • D. 

      Only a and c are true

    • E. 

      All of the above are true

  • 24. 
    When caphalopods hatch from their eggs, they are
    • A. 

      Trochophore larvae

    • B. 

      Glochidial parasites

    • C. 

      Helpless sessile larvae that must metamorphose into adult forms

    • D. 

      Juvenile that resemble small adults

    • E. 

      There is much variation and all of the above occur among the group

  • 25. 
    The alternating longitudinal and circular muscle contractions that pass along the body to facilitate locomotion are called
    • A. 

      Progressive

    • B. 

      Peristaltic

    • C. 

      Hydrostatic

    • D. 

      Regressive

    • E. 

      Coelomic