 Another response to why the terms continue to be used is that the predominant meanings are not the only ones. Type connotes a class. This sense of the terms leads to further questions: What makes organisms similar enough to be grouped in a genotype as a class? …or in a phenotype as a class? How is the membership of organisms in a genotype manifest in their membership in a phenotype—or phenotypes? How can the membership of organisms in a phenotype be used to identify their membership in a genotype? Type also connotes an abstraction away from the full set of observed characteristics. What then is to be accentuated and what de-emphasized about a genotype and phenotype, as DNA and traits or as classes—especially when asking any of the previous questions? And how—by what concepts, methods, and models—is what has been de-emphasized to be brought back and re-integrated into the scientific account? 