Zoology Final Exam

102 Questions

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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. 
    • 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. 
    • 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

  • 26. 
    The polychaetes differ from the other annelids by having a well-developed head that often bears the eyes, antennae, and sensory palps, and is often called a __________ or first segment.
    • A. 

      Cephalostomium

    • B. 

      Periostracum

    • C. 

      Peristomium

    • D. 

      Prophylactic

    • E. 

      Prostomium

  • 27. 
    The paddle-like appendages that characterize the polychaetes are called
    • A. 

      Propodia

    • B. 

      Peripodia

    • C. 

      Parapodia

    • D. 

      Setae

    • E. 

      Septa

  • 28. 
    Food is drawn into the mouth of an oligiochaete by suction created by the muscular
    • A. 

      Contraction

    • B. 

      Pharnyx

    • C. 

      Jaws

    • D. 

      Chloragogen

    • E. 

      Prostomium

  • 29. 
    The annelids have a double circulation in that materials can be moved by the blood or by the
    • A. 

      Coelomic fluid

    • B. 

      Peristalsis of the intestine

    • C. 

      Excretory organs

    • D. 

      Respiratory flaw

  • 30. 
    The nephridium occupies two segments and is composed of a ciliated funnel called a ________
    • A. 

      Protenephridia, metanephridia

    • B. 

      Protonephridia, nephridiopore

    • C. 

      Metanephridia, nephrostome

    • D. 

      Metanephridia, nephridiopore

    • E. 

      Nephrostome, nephridiopore

  • 31. 
    The structure of oligiochaetes, which secretes mucus and produces a cocoon that protects the developing young zygotes is called the
    • A. 

      Slime layer

    • B. 

      Epidermis

    • C. 

      Setae

    • D. 

      Clitellum

    • E. 

      Prostomium

  • 32. 
    The hirudineans have ___________ segments, and anterior and posterior suckers, and no ____________.
    • A. 

      15, parapodia

    • B. 

      34, jaws

    • C. 

      12, paddles

    • D. 

      34, parapodia

    • E. 

      15, jaws

  • 33. 
    Leeches feed from the body fluids of prey.  When a leech feeds it does all of the following except
    • A. 

      Attaches with posterior sucker

    • B. 

      Secretes an anticoagulant

    • C. 

      Secretes an anesthetic

    • D. 

      Secretes an antibiotic

    • E. 

      Attaches with segmental setae

  • 34. 
    The gizzard of an earthworm
    • A. 

      Absorbs calcium into the blood circulation

    • B. 

      Excretes calcium from the blood into the intestines

    • C. 

      Stores ingested food

    • D. 

      Grinds the ingested food so it may be absorbs

    • E. 

      Nothing really, just connects the crop and the intestine

  • 35. 
    The hirudineans
    • A. 

      Are endoparasites

    • B. 

      Develop an increasing number of segments during adult life

    • C. 

      Usually lack setae

    • D. 

      Typically have anterior and midventral sucker, similar to flukes

    • E. 

      Utilize parapodia for respiration

  • 36. 
    The type of tissue found around the intestine in the annelids tha can synthesize glycogen and break free to distribute nutrients in the coelom is called
    • A. 

      Choragogen tissue

    • B. 

      Pancreatic tissue

    • C. 

      Archeoblastic tissue

    • D. 

      Nephridial tissue

    • E. 

      Excretory tissue

  • 37. 
    Polychaetes have the ability to tolerate a wide range of salinity in their enviornment.  This ability is called
    • A. 

      Eukaroyte

    • B. 

      Euryhaline

    • C. 

      Eurytopic

    • D. 

      Euploidy

    • E. 

      Salthappy

  • 38. 
    The typical annelid body wall is composed of several layers.  Which of the following layers is in the correct order, outside to inside?
    • A. 

      Peritoneum, circular muscle, cuticle

    • B. 

      Longitudinal muscle, circular muscle, cuticle

    • C. 

      Cuticle, epidermis, longitudinal muscle

    • D. 

      Epidermis, peritoneum, longitudinal muscle

    • E. 

      Cuticle, longitudinal muscle, peritoneum

  • 39. 
    Polychaetes contain all or some of the following sensory organs except
    • A. 

      Simple eyes

    • B. 

      Statocysts

    • C. 

      Nuchual organs

    • D. 

      Chemorecptors

    • E. 

      Neurosecretory cells

  • 40. 
    Which of the following best describes the nervous system of leeches?
    • A. 

      Two small brains with a single dorsal nerve cord

    • B. 

      Two small brains with a single ventral nerve cord

    • C. 

      Two small brains with double dorsal nerve cord

    • D. 

      Two small brains with a double ventral nerve cord

    • E. 

      One small brain with a single ventral nerve cord

  • 41. 
    Which of the following best describes the circulatory system of earthworms?
    • A. 

      A double transport system with coelomic and circulatory fluid transport

    • B. 

      A double transport system with lymph and circulatory fluid transport

    • C. 

      A single transport system with circulation by blood only

    • D. 

      A single transport system with circulation by coelomic fluid only

    • E. 

      A blood vascular system

  • 42. 
    Respiration in annelids occur via all of the following except
    • A. 

      Skin

    • B. 

      Gills

    • C. 

      Parapodia

    • D. 

      Setae

  • 43. 
    The order in which water passes through the body of a simple sponge is
    • A. 

      Spongocoel - ostia - osculum

    • B. 

      Osculum - spongocoel - ostia

    • C. 

      Osculum - ostia - spongocoel

    • D. 

      Ostia - spongocoel - osculum

    • E. 

      Ostia - osculum - spongocoel

  • 44. 
    The simplest canal system in sponges is found in the
    • A. 

      Asconoids

    • B. 

      Leucononoids

    • C. 

      Syconoids

    • D. 

      Cubozoids

    • E. 

      Hydroids

  • 45. 
    The most complex and the most common canal systems of sponges is found in the 
    • A. 

      Asconoids

    • B. 

      Leucononoids

    • C. 

      Syconoids

    • D. 

      Cubozoids

    • E. 

      Hydroids

  • 46. 
    The gelatinous matrix found in sponges is
    • A. 

      Spongin

    • B. 

      Collagen

    • C. 

      Pinacoderm

    • D. 

      Mesohyl

    • E. 

      Spiculin

  • 47. 
    Study of the marine hawksbille tutle stomach contents found that sponges were a major portion of their diet.  Sponges are usually protected from predators by protective
    • A. 

      Pinacocytes

    • B. 

      Choanocytes

    • C. 

      Spicules

    • D. 

      Amoebocytes

    • E. 

      Nematocysts

  • 48. 
    The outer thin, flat epithelial-like cells that cover the outside and some inside surfaces of sponges are
    • A. 

      Pinacocytes

    • B. 

      Choanocytes

    • C. 

      Spiclues

    • D. 

      Amoebocytes

    • E. 

      Spongin

  • 49. 
    The modified cells of sponges that form circular bands and provide just a little constriction to control flow are
    • A. 

      Pinacocytes

    • B. 

      Choanocytes

    • C. 

      Spiclues

    • D. 

      Myocytes

    • E. 

      Amoebocytes

  • 50. 
    A sponge feeds by
    • A. 

      Using a net and current that sweeps food particles through it

    • B. 

      Squeezing the spongocoel cavity to suck debris in and out through the osculum

    • C. 

      Beating the flagella of collar cells to form a current; food is absorbed by collar cells

    • D. 

      Beating the flagella of collar cells form a current from the osculum to pores; food is engulfed by archaeocytes in the central cavity

    • E. 

      Photosynthesis

  • 51. 
    Cells that move about in the mesohyl and digest particles and may specialize for other functions are the
    • A. 

      Archaeocytes

    • B. 

      Pinacocytes

    • C. 

      Choanocytes

    • D. 

      Spongocytes

    • E. 

      Pogocytes

  • 52. 
    Specialized archaeocytes that secrete spicules are
    • A. 

      Collencytes

    • B. 

      Sclerocytes

    • C. 

      Choanocytes

    • D. 

      Spongocytes

    • E. 

      Spiculocytes

  • 53. 
    The structural protein found in all sponges is
    • A. 

      Spongin

    • B. 

      Collagen

    • C. 

      Spiculin

    • D. 

      Mesohyl

    • E. 

      Gorgonin

  • 54. 
    Cells responsible for water flow and capture of some particles are the 
    • A. 

      Myocytes

    • B. 

      Archaeocytes

    • C. 

      Choanocytes

    • D. 

      Pinacocytes

    • E. 

      Gemmules

  • 55. 
    Which is NOT a trait of sponges?
    • A. 

      Sessile filter feeders

    • B. 

      Body wall has two cell layers

    • C. 

      Flagellated collar cells move water

    • D. 

      Water enters through the osculum

    • E. 

      Types of amoeboid cells digest food and make skeletal fibers and gametes

  • 56. 
    Reproduction is sponges is
    • A. 

      Asexual by budding

    • B. 

      Sexual by gemmules

    • C. 

      Sexual with both male and female sex cells in separate individual

    • D. 

      Asexual by pedal laceration

    • E. 

      All of the above

  • 57. 
    The ________ stage is best adapted for cnidarians living in colonies while the ____ stage helps in dispersal and survival in open oceans.
    • A. 

      Gastrazooid; dactylozooid

    • B. 

      Lappet; rhopalium

    • C. 

      Medusa, polyp

    • D. 

      Polyp; medusa

    • E. 

      Dactylozooid; gastrozooid

  • 58. 
    • A. 

      Respiratory

    • B. 

      Nervous

    • C. 

      Circulatory

    • D. 

      Excretory

    • E. 

      Reproductive

  • 59. 
    Throughout most cnidarian groups, the basal or pedal disc serves to
    • A. 

      Be the base of the tentacles

    • B. 

      Attach the cnidarian to the substrate

    • C. 

      Generate buds

    • D. 

      Perform extracellular digestion

    • E. 

      Harbor sensory cells

  • 60. 
    The class Hydrozoa contain Hydra, Obelia, and
    • A. 

      The Portuguese man-of-war

    • B. 

      Aurelia

    • C. 

      The sea anemones

    • D. 

      Most of the corals

    • E. 

      Moon jellyfish

  • 61. 
    Hydra reproduces asexually by
    • A. 

      Buds

    • B. 

      Nematocysts

    • C. 

      Gland cells

    • D. 

      Gametes

    • E. 

      Producing temporary gonads

  • 62. 
    The function of rhopalia is
    • A. 

      Digestive

    • B. 

      Respiratory

    • C. 

      Sensory

    • D. 

      Reproductive

    • E. 

      Excretory

  • 63. 
    Sea anemones and corals lack
    • A. 

      A sexual stage

    • B. 

      An asexual stage

    • C. 

      A polyp stage

    • D. 

      A medusa stage

    • E. 

      A larval stage

  • 64. 
    Hermaphroditic sea anemones that produce sperm first and eggs later in order to prevent sel-fertilization, are called
    • A. 

      Asexual

    • B. 

      Pre-testicular

    • C. 

      Postgynous

    • D. 

      Protandrous

    • E. 

      Precocious

  • 65. 
    The correct sequence in the life cycle of the jellyfish Aurelia is
    • A. 

      Planula, ephyra, scyphistoma

    • B. 

      Scyphistoma, planula, ephyra

    • C. 

      Planula, scyphistoma, ephyra

    • D. 

      Ephyra, planula, scyphistoma

    • E. 

      None of the above

  • 66. 
    Which statement about cnidarians is NOT true?
    • A. 

      Reproduction is both sexual and asexual

    • B. 

      Some forms are sessile and others are motile

    • C. 

      They live in either marine or freshwater environments

    • D. 

      Tentacles are used to capture prey and put it into the mouth

    • E. 

      The body plan is tube-within-a-tube, with both mouth and anus

  • 67. 
    A/an ______ is close to the land and has either no lagoon or a very shallow lagoon.
    • A. 

      Atoll

    • B. 

      Barrier reef

    • C. 

      Fringing reef

    • D. 

      Bank or patch reef

    • E. 

      Cresting reef

  • 68. 
    Moon Jellyfish belong to the class
    • A. 

      Anthozoa

    • B. 

      Scyphozoa

    • C. 

      Hydrozoa

    • D. 

      Cubozoa

    • E. 

      Moonozoa

  • 69. 
    Sensory cells responsible for maintaining balance and equilibrium are
    • A. 

      Ocelli

    • B. 

      Statocysts

    • C. 

      Nerve cells

    • D. 

      Gland cells

    • E. 

      Muscle cells

  • 70. 
    The epidermis of most cnidarians does NOT contain which of the following cells
    • A. 

      Epitheliomuscular cells

    • B. 

      Gland cells

    • C. 

      Interstitial cells

    • D. 

      Nutritive muscular cells

    • E. 

      Sensory cells

  • 71. 
    Which of the following in NOT a subclass of class Anthozoa?
    • A. 

      Zoantharia

    • B. 

      Alcyonaria

    • C. 

      Daria

    • D. 

      Ceriantipatharia

  • 72. 
    Food moves into the body of an anemone by which path?
    • A. 

      Mouth-pharnz-syphonoglyph-gastrovascular cavity

    • B. 

      Mouth-syphonoglyph-pharynx-gastrovascular cavity

    • C. 

      Mouth-gullet-pharynx-gastrovascular cavity

    • D. 

      Syphonoglyph-mouth-pharynx-gastrovascular cavity

  • 73. 
    A planarian feeds by
    • A. 

      Attaching with a sucker and extracting blood

    • B. 

      Tearing and sucking food particles via a mid-ventral proboscis

    • C. 

      Engulfing food particles through an anterior mouth and excreting waste via an anus

    • D. 

      Soaking all nutrients from the environment through its thin epidermal surface

    • E. 

      Sucking nutrients in from the environment through its flame cell system

  • 74. 
    In flame cells,
    • A. 

      Light is detected

    • B. 

      Cilated sperm are stored

    • C. 

      Undigested food is expelled

    • D. 

      Slow fires actually burn food for energy

    • E. 

      Cilia drive fluids through the tubules for excretion

  • 75. 
    Turbellarians, such as the planaria, move by
    • A. 

      Flame cells

    • B. 

      Small pseudopods

    • C. 

      Lateral undulation of muscles

    • D. 

      Expulsion of fluids as seen in squid

    • E. 

      Secreting a slime track of mucus and pushing against it with epidermal cilia and muscular waves

  • 76. 
    Which of the following statements about planaria is not true?
    • A. 

      The rudimentary circulatory system has a small central heart

    • B. 

      Planaria cut in halff regenerate to form two complete worms

    • C. 

      Movement occurs through ciliary cells and muscle movement

    • D. 

      Tissue levels include endoderm mesoderm and ectoderm

    • E. 

      Cephalization consists of a brain and sense organs in the a head region

  • 77. 
    The nervous system of a freshwater planarian consists of
    • A. 

      Only a diffuse epidermal nerve plexus underneath the ventral skin

    • B. 

      A simple brain of ganglion cells leading to a ladder-type nerve network

    • C. 

      Only sensory and motor neurons but no association neurons

    • D. 

      The first complex central nervous system

    • E. 

      No cells since they were lost along with other unnecessary systems in parasites

  • 78. 
    The male capulatory organ of turbellarians is called a 
    • A. 

      Rhabdite

    • B. 

      Pilidium

    • C. 

      Cirrus

    • D. 

      Hydatid

    • E. 

      Gonopore

  • 79. 
    The intermediate host of the blood fluke is
    • A. 

      Fish

    • B. 

      Human

    • C. 

      Snail

    • D. 

      Dog

    • E. 

      Rate

  • 80. 
    The blood fluke Schistosoma is
    • A. 

      An endoparasite

    • B. 

      An ectoparasite

    • C. 

      Free-living

    • D. 

      Mutualistic

    • E. 

      None of the above

  • 81. 
    The name of the free-swimming, ciliated stage that hatched from a trematode egg is the 
    • A. 

      Sporocyst

    • B. 

      Cerocaria

    • C. 

      Miracidium

    • D. 

      Larva

    • E. 

      Rhabdites

  • 82. 
    Animals with three well defined germ layers and that have one solid mass of tissue rather than tissues and organs nestled inside a body cavity are
    • A. 

      Pseudocoelomates

    • B. 

      Acoelomates

    • C. 

      Coelamates

    • D. 

      Quasicoelomates

    • E. 

      None of the above

  • 83. 
    1. The correct sequence of development is a typical fluke life cycle is
    • A. 

      Egg, miracidium, cercaria, sporocyst

    • B. 

      Egg, miracidium, sporocyst, cercaria

    • C. 

      Egg, sporocyst, cercaria, miracidium

    • D. 

      Egg, cercaria, miracyst, sporocyst

    • E. 

      Egg, sporocyst, miracidium, cercaria

  • 84. 
    Humans become infected with blood flukes by
    • A. 

      Eating infected fish

    • B. 

      Eating infected crabs or crayfish

    • C. 

      Drinking water contaminated with eggs

    • D. 

      Wading in infected waters

    • E. 

      Eating undercooked pork

  • 85. 
    Trematodes have a body covering known as a(an)
    • A. 

      Exoskeleton

    • B. 

      Cuticle

    • C. 

      Epithelium

    • D. 

      Tegument

    • E. 

      Shell

  • 86. 
    A farmer in a rice paddy in Asia becomes infected with the liver fluke by
    • A. 

      Eating infected snails

    • B. 

      Drinking water contaminated with eggs

    • C. 

      Eating infected undercooked or uncooked fish

    • D. 

      Swimming or wading in infected water, where cercariae enter the skin

    • E. 

      Eating bad rice

  • 87. 
    Animals that have three germ layers of embryonic tissue but have organs in a cavity that is not completely lined with mesoderm are
    • A. 

      Coelomate

    • B. 

      Acoelomate

    • C. 

      Pseudocoelomate

    • D. 

      Quasicoelomate

    • E. 

      Eucoelomate

  • 88. 
    Which statement is not correct about nematodes?
    • A. 

      Nematodes lack circular muscles under the tegument

    • B. 

      Nematodes have a complete digestive tract with a mouth, pharynx, and anus

    • C. 

      The nervous system consists of a single nerve cord running dorsally down the body

    • D. 

      Nematodes are all carnivores but may be free-living or parasitic

    • E. 

      The body cavity provides a hydrostatic skeleton

  • 89. 
    Which of these parasites does not enter the mouth of its human host and leave as eggs with the human feces?
    • A. 

      Pinworm

    • B. 

      Ascaris

    • C. 

      Hookworm

    • D. 

      Tapeworm

    • E. 

      Filiarial worms

  • 90. 
    In what two roundworm parasite cycles do worms get 'coughed up" and swallowed in order ot complete their life cycle
    • A. 

      Hookworm and trichina

    • B. 

      Ascaris and trichina

    • C. 

      Ascaris and hookworm

    • D. 

      Filarial worm and hookworm

    • E. 

      Filarial worm and Ascaris

  • 91. 
    If you are discovered to have an infection of Ascaris worms, your most likely danger is
    • A. 

      Anemia

    • B. 

      Destruction of tissues as it migrates through your body

    • C. 

      Blockage of the intestines

    • D. 

      Starvation from lack of nutrition because it is absorbing all your food

    • E. 

      Lymph blockage

  • 92. 
    Which of these is not a nematode?
    • A. 

      Ascaris

    • B. 

      Trichinella

    • C. 

      Wuchereria

    • D. 

      Hookworm

    • E. 

      Schistosoma

  • 93. 
    The name "hookworm" is due to the fact they
    • A. 

      Cluster in blood vessels in the liver and clog the veins

    • B. 

      Burrow constantly through muscle tissue

    • C. 

      Hook onto the intestine and consume blood and tissue fluids

    • D. 

      Clog the lymph glands and expand the legs and arms

    • E. 

      Have an anterior end that curves dorsally like a hook

  • 94. 
    If the main disease symptom is anemia, the most likely nematode parasite is
    • A. 

      Trichinella

    • B. 

      Ascaris

    • C. 

      Pinworm

    • D. 

      Hookworm

    • E. 

      Planaria

  • 95. 
    • A. 

      You consume contaminated water or food

    • B. 

      You eat uncooked meat

    • C. 

      Larvae burrow into your feet

    • D. 

      Mosquitoes inject them into your bloodstream

    • E. 

      You transfer them from your region if you don't wash your hands

  • 96. 
    Parasites found in the United States where people contract it up by eating poorly cooked pork meat, bear meat, etc is
    • A. 

      Trichinella

    • B. 

      Ascarius

    • C. 

      Pinworm

    • D. 

      Hookworm

    • E. 

      Filarial worms

  • 97. 
    Dogs commonly suffer from heartworm caused by
    • A. 

      Filarial worms

    • B. 

      Tapeworms consumed in raw meat

    • C. 

      Nematodes consumed as eggs in contaminated water

    • D. 

      Licking their dirty paws

    • E. 

      Licking their dirty butt (sorry it's getting late, I'm sleepy)

  • 98. 
    Juvenile Trichinella worms live in the
    • A. 

      Liver

    • B. 

      Lungs

    • C. 

      Intestine

    • D. 

      Lymph glands

    • E. 

      Skeletal muscle

  • 99. 
    Elephantiasis is an enlargement of legs, arms, scrotum, and other tissues caused by
    • A. 

      An infection of the human coelom by Ascaris

    • B. 

      A large number o Trichinella worms encysting in the muscles

    • C. 

      Contracting a disease that usually occurs in elephants

    • D. 

      Microscopic nematode that reproduce and clog lymph glands

    • E. 

      A protozoan that lives in tropical roundworms and which, when ingested by human, causes the muscles to bloat

  • 100. 
    The mild nematode infection somewhat common among children in teh southern United States, and transmitted as eggs from anal to oral regions by the hands is
    • A. 

      Trichinella

    • B. 

      Ascaris

    • C. 

      Hoodworm

    • D. 

      Pinworm

    • E. 

      Ringworm

  • 101. 
    Most male nematodes bear a pair of posterior spicules which aid in 
    • A. 

      Locating a female nematode

    • B. 

      Inseminating a female nematode

    • C. 

      Attaching the worm to the intestinal wall

    • D. 

      Attaching the worm to the bladder wall

    • E. 

      Secreting mucus to prevent dehydration

  • 102. 
    Which of the following is not a factor that protects north American from many parasitic worm infecions
    • A. 

      Much of the United States has bitter cold winter

    • B. 

      Most of the population wears shoes

    • C. 

      We usually cook our meat and there are very few raw meat dishes

    • D. 

      We have superior drugs and surgeons

    • E. 

      We do not use human excreta to directly fertilize crops