Medical Helminthology: Endoparasites and Exoparasites
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Questions and Answers

Which phylum includes class nematoda and two subclasses: Subclass – Aphasmidia and Subclass – Phasmidia?

  • Phylum Platyhelminthes
  • Class – Cestoda
  • Phylum Nemathelminthes (correct)
  • Class: Monogenea

Which class of Phylum Platyhelminthes are ectoparasites of fishes and do not infect humans?

  • Class: Monogenea (correct)
  • Class – Cestoda (tapeworms)
  • Class – Nematoda
  • Class – Trematoda (flukes or digeneans)

In which form do helminths exist in general, apart from the adult form?

  • Eggs (correct)
  • Larvae
  • Juveniles
  • Pupae

Which phylum is characterized by multicellular, bilaterally symmetrical animals having 3 germ layers and includes helminths?

<p>Phylum Platyhelminthes (C)</p> Signup and view all the answers

Which class of Phylum Platyhelminthes includes tapeworms?

<p>Class – Cestoda (tapeworms) (A)</p> Signup and view all the answers

Which characteristic is true for Phylum Platyhelminthes?

<p>They are monoecious or hermaphrodite (A)</p> Signup and view all the answers

Which phylum possesses a definite body cavity?

<p>Phylum Nematoda (D)</p> Signup and view all the answers

Which phylum is characterized by the presence of tissue flukes or blood flukes?

<p>Phylum Platyhelminthes (D)</p> Signup and view all the answers

Which subclass of trematodes live as obligate parasites of both mollusks and vertebrates?

<p>Digenea (A)</p> Signup and view all the answers

Which helminth requires two hosts to complete its life cycle?

<p>Nematodes (A)</p> Signup and view all the answers

Which type of helminth directly discharges the larval forms after fertilization?

<p>Viviparous (D)</p> Signup and view all the answers

What is the larval form found in cestodes?

<p>Hydatid cyst (A)</p> Signup and view all the answers

Which phylum has a rudimentary nervous system and no circulatory system?

<p>Phylum Nematoda (B)</p> Signup and view all the answers

Which helminth completes its life cycle in two hosts, including a definitive host and an intermediate host?

<p>Cestodes (A)</p> Signup and view all the answers

Which phylum includes trematod species that may also infect vertebrates such as turtles and fish?

<p>Phylum Platyhelminthes (D)</p> Signup and view all the answers

Which helminth lays eggs containing larvae that immediately hatch out?

<p>Ovoviviparous (B)</p> Signup and view all the answers

Which phylum includes the class Monogenea, known for being ectoparasites of fishes and not infecting humans?

<p>Phylum Platyhelminthes (C)</p> Signup and view all the answers

Which subclass of Phylum Nemathelminthes is characterized by having a rudimentary nervous system and no circulatory system?

<p>Aphasmidia (C)</p> Signup and view all the answers

Which class of Phylum Platyhelminthes includes flukes or digeneans?

<p>Trematoda (D)</p> Signup and view all the answers

In which form do helminths exist in general, apart from the adult form?

<p>Adult, larval, and egg forms (D)</p> Signup and view all the answers

Which phylum is characterized by multicellular, bilaterally symmetrical animals having 3 germ layers and includes parasitic worms?

<p>Phylum Platyhelminthes (A)</p> Signup and view all the answers

Which phylum includes class nematoda and two subclasses: Subclass – Aphasmidia and Subclass – Phasmidia?

<p>Phylum Nemathelminthes (A)</p> Signup and view all the answers

Which phylum completes its life cycle in two hosts, including a definitive host and an intermediate host?

<p>Cestodes (D)</p> Signup and view all the answers

Which type of helminth lays eggs containing larvae that immediately hatch out?

<p>Nematoda (A)</p> Signup and view all the answers

In which phylum do helminths have a definite body cavity?

<p>Nematoda (C)</p> Signup and view all the answers

Which subclass of trematodes lives as obligate parasites of both mollusks and vertebrates?

<p>Digenea (A)</p> Signup and view all the answers

Which phylum is characterized by multicellular, bilaterally symmetrical animals having 3 germ layers and includes helminths?

<p>Platyhelminthes (B)</p> Signup and view all the answers

Which class of Phylum Platyhelminthes includes tapeworms?

<p>Cestoda (A)</p> Signup and view all the answers

What is the larval form found in cestodes?

<p><strong>Cysticercus</strong> (B)</p> Signup and view all the answers

Which phylum includes trematod species that may also infect vertebrates such as turtles and fish?

<p>Platyhelminthes (D)</p> Signup and view all the answers

Which phylum possesses a rudimentary nervous system and no circulatory system?

<p>Nematoda (D)</p> Signup and view all the answers

Which helminth requires two hosts to complete its life cycle?

<p>Trematodes (C)</p> Signup and view all the answers

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