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Bis2C+lect+11+Rizzo+human+associated+microbes

Bis2C+lect+11+Rizzo+human+associated+microbes - Lecture 10...

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Lecture 10: Viruses Lecture 11: Human- associated microbes Lecture 12: Intro to Eukaryotes
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Symbiosis
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A symbiosis represents: A. an interaction between two or more organisms in which all organisms benefit. B. an interaction between two organisms in which one organism benefits and another is negatively impacted. C. an interaction between two organisms in which one organism benefits and the other is not impacted in any way. D. a range of interactions between two or more organisms, including examples of choices 1, 2 and 3 above.
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Classes of symbiosis A B Mutualism + + Commensalism + 0 Parasitism + -
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Parasite: an organism living on or in another organism and obtaining its nutrients and energy at the expense of the second organism. A parasite may or may not be a pathogen. P athogen: a biological agent that causes disease to its host.
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