Which of the following is not a factor that affects germicidal activity?
A. Length of exposure
B. Microorganism being treated
C. Material being treated
D. Strength of the germicide
E. All of the choices are factors.
Answer: E
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The basilar membrane has varying flexibility. Activation of different regions of the basilar membrane enable perception of sounds of different:
A. pitch B. amplitude C. intensity D. loudness
A mutation is
A) a change in a DNA sequence that affects at least 90 percent of individuals in a population. B) a change in a DNA sequence that is rare in a population. C) a change in a DNA sequence that harms health. D) a type of radiation that can alter the genetic code.
The nutritive tissue in a mature pine seed is triploid
____________________ Indicate whether the statement is true or false.
Which of the following variables might be a proxy variable for the confounding factor of cognitive ability in a sample of workers and their ability to generate sales?
A. Age B. Tenure at the company C. Test scores D. Past sales records