Parasitology

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Parasitology

• Nematoda Quiz

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• Nematodes are pseudocoelmates, which means that
  their body cavity is
• A) lined by mesoderm
• B) lined by endoderm
• C) partially lined with mesoderm
• D) partially lined with endoderm
• C) partially lined with mesoderm

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• Since nematodes have a tube ina tube body plan,
  they have a _______ digestive tract.
• A) complete
• B) dead ended
• C) one way
• D) partial
• A) complete

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• Muscles in nematodes run which direction?
• A) circularly
• B) longitudinally
• C) attitudinally
• D) criss-crossed
• B) longitudinally

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• Nematodes grow by which process?
• A) slow gradual growth
• B) alternation of generations
• C) switching from one stage to another
• D) periodic molting like insects
• D) periodic molting like insects

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• Whipworms attach to their hosts by using their
  _______ to burrow into the intestinal mucosa.
• A) thin anterior end
• B) thin posterior end
• C) thick anterior end
• D) thick posterior end
• A) thin anterior end

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• Trichinella spiralis has a juvenile stage that
  lives in __________.
• A) the intestine
• B) kidney cells
• C) liver cells
• D) skeletal muscle cells
• D) skeletal muscle cells

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• Order Strongylida typically have 4 or 5 larval
  stages, of which _____ are free-living.
• A) 1
• B) 2
• C) 3
• D) 4
• C) 3

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• Hookworms tend to be asymptomatic, with severe
  cases causing ______ in adults.
• A) anemia
• B) dysentery
• C) liver failure
• D) brain damage
• A) anemia

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• The barberpole worm gets its name from the
  spiraling of _________________.
• A) red intestine and white ovaries
• B) white intestine and red ovaries
• C) red testes and white ovaries
• D) white testes and red ovaries
• A) red intestine and white ovaries

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• Hypobiosis means what in the brown stomach worm
  of cattle?
• A) partial development
• B) lesser life stages are infective
• C) arrested development
• D) lower osmotic pressures
• C) arrested development