Portage Learning BIOD 171/Microbiology Module 3 Exam Questions and Answer Key...Latest 12/2021...A+

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Portage Learning BIOD 171/Microbiology Module 3 Exam Questions and Answer Key...Latest 12/2021...A+ A nanometer is defined as: - CORRECT ANSWERA. 10-3B. 10-6C.10-9D. 10-12 True or False: A nanom... eteris longer than a micrometer. - CORRECT ANSWERFalse. A nanometer is 1,000 times smaller than a micrometer. Resolution and contrast are two critical factors that influence your ability to see an object. Explain each. - CORRECT ANSWERResolution refers to the distance between two objects at which the objects still can be seen as separate. Poor or low resolution means two (or more) objects may appear as one. Contrast is the difference in light absorbance between two objects. Poor contrast gives a high background and makes the visualization of multiple objects difficult. For instance, trying to identify 2 dark colored objects at night (low light = low contrast) versus the same 2 objects in the middle of a sunny afternoon (bright light against 2 dark objects = high contrast). [Show More]

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