Parasitic Host Interactions Quiz

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Questions and Answers

What type of host acts as a bridge between the intermediate host and the definitive host?

  • Paratenic host (correct)
  • Dead-end host
  • Accidental host
  • Definitive host

Which type of host cannot progress the life cycle development of the parasite?

  • Dead-end host (correct)
  • Intermediate host
  • Paratenic host
  • Definitive host

What is the term used for a symbiotic relationship where both organisms benefit from each other's existence?

  • Parasitism
  • Commensalism
  • Mutualism (correct)
  • Phoresis

In the context of parasite-host relationships, what is an example of a dead-end host for the Japanese encephalitis virus?

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

What is the primary role of a paratenic host in a parasite's life cycle?

<p>To carry the parasite without allowing it to develop further (D)</p> Signup and view all the answers

Which type of symbiotic relationship involves one organism benefiting and the other being unaffected?

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

What is the main difference between parasitism and commensalism?

<p>In parasitism, the host is harmed, whereas in commensalism, the host is neither helped nor harmed. (C)</p> Signup and view all the answers

What is the primary purpose of adaptations in parasites?

<p>To maximize benefit from the environment (D)</p> Signup and view all the answers

Why do endoparasites usually lack feeding organs?

<p>They feed directly on host tissues. (A)</p> Signup and view all the answers

Which statement best describes the impact of parasitism on the host?

<p>The host is harmed due to the parasite benefiting from the relationship. (D)</p> Signup and view all the answers

What is a common characteristic of commensals in symbiotic relationships?

<p>They neither help nor harm the host. (A)</p> Signup and view all the answers

Why do endoparasites often have highly reduced or absent locomotory organs?

<p>To prevent damage to host tissues during movement. (C)</p> Signup and view all the answers

What type of parasites live on the surface of the host's body?

<p>Head louse and blood-sucking fleas (D)</p> Signup and view all the answers

Which parasite has attachment organs like rostellum, hooks, or suckers to connect securely to the host's organs?

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

Which parasite has a highly muscular pharynx for easy absorption of food materials from the host?

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

What type of parasite lives in the interior of the host's body, in the blood, tissues, body cavities, and other organs?

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

Which parasite leads a parasitic condition throughout its entire life cycle?

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

Which term describes organisms that can live either a parasitic or non-parasitic existence depending on opportunity?

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

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