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Match the best pipette to use for each volume:  

Match the best pipette to use for each volume:  

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For our mycology experiment, we worked in the Biosafety Cabi…

For our mycology experiment, we worked in the Biosafety Cabinet. This cabinet uses ____________ to keep samples contained within the cabinet. 

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You plated diluted saliva samples on Petrifilms and counted…

You plated diluted saliva samples on Petrifilms and counted the following numbers of colonies for each dilution:  Dilution Factor 10-4 10-5 10-6 10-7 10-8 CFU/mL 1089 756 432 244 15 Which dilution factor should you use to calculate the initial CFU/mL of your sample?

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When we plated our saliva samples on Petrifilms, red dots ap…

When we plated our saliva samples on Petrifilms, red dots appeared after incubation. We counted these dots (colonies) to approximate Colony Forming Units/mL of sample. Does this count tell us the number of living cells or a mixture of living and dead cells and why? 

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I have a liquid culture of bacteria at an optical density (O…

I have a liquid culture of bacteria at an optical density (OD) of 1.63 and want to normalize my sample to an OD of 0.2 at a volume of 1000 µL. How much bacteria do I need to use? (Round to the nearest whole number)

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We isolated unknown microorganisms from our environment by l…

We isolated unknown microorganisms from our environment by leaving a plate open on the first day of class. During our traditional diagnostics lab, we tested our samples for their ability to grow in anaerobic conditions. Some bacteria are able to grow in these anaerobic conditions, what does that mean for their oxygen requirements?

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The first cancer hospital in France moved out of the city in…

The first cancer hospital in France moved out of the city in 1779 due to fear that cancer would spread, reflecting belief in the:

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Best public health measure to prevent virus-related cancer:

Best public health measure to prevent virus-related cancer:

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BED vs PBE markers:

BED vs PBE markers:

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______________ is needed to compare state-level incidence be…

______________ is needed to compare state-level incidence because elderly populations differ.

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