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Considering the evolution of Bacteria, the criteria used for taxonomy, and the genetic requirements for individual metabolic pathways, explain how it is unlikely to observe three genera of the same family where one genus has strict anaerobes that degrade only small aromatics, another genus degrades large molecular weight sugars aerobically, and a third is a photoautotroph.
Lower-tailed
Refers to a type of hypothesis test or confidence interval that focuses on determining whether the value of interest is significantly less than a specified value.
Perfect Fit
A situation where a model, equation, or line precisely describes or predicts the observed data without any errors.
Chi-square Test
A statistical test used to determine if there is a significant difference between observed and expected frequencies in one or more categories.
Nominal Variables
Variables that represent categories with no inherent order or ranking among them.
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