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In regard to life on Earth, cellular life began approximately
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3.8 to 3.9 billion years ago.
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Basic microbiology can be used to
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A. model our understanding of cell function in higher organisms, including humans.b.probe the nature of life processes in all organisms.c. study biochemical properties that are common to all cells.
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Approximately, how many microbial cells are on/in the average human body?
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Ten times more than the number of human cells
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Generally speaking, the enrichment culture technique
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Allows for the growth of some organisms and restricts the growth of others.
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The greatest source of living biomass on Earth comes from
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Microbes
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Fannie Hesse is credited with giving ________ the idea to use agar as a solidifying agent
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Robert Koch
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The theory of spontaneous generation was refuted by the work of
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Louis Pasteur
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Which of the following best describes Koch’s THIRD postulate?
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Cells from a pure culture of the pathogen must cause disease in a healthy animal
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This person described bacteria as "wee animalcules"
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Antoni van Leeuwenhoek
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 What is the most appropriate type of microscopy |
Scanning Electron
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 What is the most appropriate type of microscopy |
Dark-Field
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 What is the most appropriate type of microscopy |
Phase Contrast
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 What is the most appropriate type of microscopy |
Bright-field
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 What is the most appropriate type of microscopy |
Differential Interference
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In regards to microscopy, the term parfocal is
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The ability to stay in focus with different objective lenses
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