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...
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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