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Parasitology~ EXAM 1 Questions And Answers Travel Immigration and Emigration ______ transfers many parasites into the United States. visceral pertaining to organs cutaneous pertaining to skin Every animal and most plants contain at least one parasite How common are parasites? 100% of organi...

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  • October 20, 2024
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Parasitology~ EXAM 1 Questions And
Answers

Travel


Immigration and Emigration ______ transfers many parasites into the United States.




visceral pertaining to organs




cutaneous pertaining to skin




Every animal and most plants contain at least one parasite How common are parasites?




100% of organisms can be a host to a parasite. What percentage of organisms can be

hosts?




50% of organisms can be parasites




80% of organisms including bacteria can be parasites What percentage of organisms are

parasites?

, Parasitology~ EXAM 1 Questions And
Answers
What percentage of organisms including bacteria can be parasites?




370 species How many species can be parasites to humans?




Bacteria

Fungi

Plants

Protozoa


Animals What major groups of organisms are parasites found in?




symbiosis "living closely together", close relationship between two organisms




symbionts interacting organisms




Phoresis travelling together; neither benefit or lose from the interaction.




Commensalism Relationship where one member benefits, other is unaffected

, Parasitology~ EXAM 1 Questions And
Answers

mutualism relationship where both members benefit




Parasitism a relationship where one member gains (parasite), and the other is negatively

(host) affected




slower population growth A larger organism results in .....




SImilarities:

-Both have (+,-) relationship

-

Differences

-Predator is larger than prey

-Parasite is smaller than host

-Predators have slower growth than prey population

-Parasite population size increases faster than the host population.

-Predator eats many prey

, Parasitology~ EXAM 1 Questions And
Answers
-Parasite uses 4 or less hosts to complete a generation (often very specific interactions are

involved) What are the similarities and differences between predator and parasite

relationships?




Mosquitoes, ticks, leeches, etc. are predators. They prey on many hosts or single host

intermittently. Give some examples of micropredators or intermittent parasites.




Wasps and flies

adults are free-living


immature stages feed on hosts body (usually another insect) Give some examples of

parasitoids.




Ectoparasites Parasites that live on the body surface of host




Endoparasites Parasites that live on the inside of the body of the host




obligate parasites parasites that needs a host to survive

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