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11 Cards in this Set
- Front
- Back
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what does symbiosis mean? |
to live together. continuum from cases that are beneficial to both members of a pair to situations in which one member lives at a damaging expense to the other. |
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define mutualism |
in which both members benefit. i.e. wood eating termites |
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what is parasitism |
a parasite benefits while the host is harmed |
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define commensalism |
one member benefits while the other is relatively unaffected. |
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define pathogen |
a microorganism capable of causing disease |
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describe normal microbiota |
organisms that live in and on the body. aka-normal flora, without normally causing disease |
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what is resident microbiota |
microbiota that remain a part of the normal microbiota of a person throughout life. They are found on the skin, mucous membranes, digestive tract, upper respiratory tract, urethra and vagina. |
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what is transient microbiota |
microbiota that remain in the body for only a few hours, days, or months before disappearing. |
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list some ways that pathogens may become "opportunistic" |
-introduction of a member of the normal microbiota into an unusual site in the body. -immune suppresion -changes in normal microbiota -microbial antagonism |
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what is Reservoirs of infection? |
living and nonliving continuous sources of infectious disease |
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what is zoonoses |
diseases that spread naturally from their usual animal hosts to humans |
