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22 Cards in this Set
- Front
- Back
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Infectious Disease |
Change in health caused by invasion of pathogenic organism |
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Parasitism |
An intimate and durable relationship where one species (the parasite) causes harm to another (the host) |
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intimate |
living together |
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durable |
long term; host as habitat |
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How is a predator different from a parasite? |
Predator has multiple prey Predators bigger than prey usually Predators kill their prey Not durable or intimate |
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How is a herbivore different from a parasite? |
Herbivore eats many types of plants Plant parasite is specialized and spends entire life stage on or in plant not durable or intimate |
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commensalism |
Guest+, Host 0 |
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mutualism |
Guest +, Host + |
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Inquilinism |
Living inside a host but doing no harm |
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Micropredator, example |
feeds on more than one prey individual but does not kill them and is smaller than prey EX: bat, mosquito, flea |
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parasitic castrator |
eliminates hosts ability to reproduce, fitness goes to 0 |
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Macroparasite |
Does not multiply within host (helminth worms, arthropods) |
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Microparasite |
Multiplies within host (bacteria, viruses, fungi, many protozoans) |
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Ectoparasite |
Outside the host (ticks, fleas) |
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What percent of animals are parasites? |
40% to 70% |
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zoonotic disease |
disease that can be passed between animals and humans Very common |
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Epidemic |
a widespread outbreak of an infectious disease in a community at a particular time |
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susceptibility |
likely to be affected/contract an infectious disease |
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Inoculation |
Introduction of a serum/vaccine or antigenic substance into individual to boost immunity to a specific disease |
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vector |
any agent that carries and transmits an infectious pathogen into another living organism |
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Parasitoids, ex |
Insects whose larvae kill host, adults are free-living (many wasps) |
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Phoresy |
A parasite that uses host to catch a ride |
