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Micro - Ch 1

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Question
Answer
Microbe   microorganisms  
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Microorganism   A living organism to small to be seen with the naked eye; includes bacteria, fungi, protozoa, and microscopic algae; also includes viruses.  
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Pathogen   A disease-causing organism  
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Unicellular   single-celled organism  
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Eubacteria   The domain of germs  
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Bacteria   Domain of prokaryotic organisms, characterized by peptidoglycan cell walls; bacterium (singular) when referring to a single organism.  
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Prokaryotes   A cell whose genetic material is not enclosed in a nuclear envelope  
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Archaea   Domain of prokaryotic cells lacking peptidoglycan; one of the three domains  
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Fungi   An organism that belongs to the kingdom fungi; a eukaryotic absorptive chemoheterotroph.  
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Eukaryotes   A cell having DNA inside a distant membrane-enclosed nucleus.  
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Protozoa   Unicellular, eukaryotic microbes. Protozoa move by pseudopods, flagella, or cilia.  
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Algae   Photosynthetic eukaryotes with wide variety of shapes and both sexual and asexual reproductive forms.  
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Virus   A sub-microscope, parasitic, filterable agent consisting of nucleic acid surrounded by a protein coat.  
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Multicellular animal parasites   The principal groups of multicellular animal parasites are flatworms and roundworms, collectively called helminths.  
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Helminths   Are the two major groups of parasitic worms (flatworms and the round worm)  
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Biogenesis   The theory that all living cells arise only from preexisting cells.  
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Spontaneous generation   The hypothetical process that some forms of life could arise spontaneously from nonliving matter.  
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Infections Disease   A disease in which pathogens envade a susceptible host and carry out at least part of their cell cycle in the host.  
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Germ theory of disease   The possibility that microorganisms might have similar relationships with plants and animals - specifically, that microorganisms might cause disease.  
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Koch's Postulates   Criteria used to determine the causative agent of infectious diseases.  
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Pasteurization   The process of mild heating to kill particular spoilage microorganisms or pathogens.  
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