👉 The term "phenotypical" can be defined as a characteristic or feature that is observable by an organism at its most basic level. It refers to the physical and behavioral characteristics of an individual, which are typically not visible to the naked eye but can be observed through various means such as microscopy or visual examination. In biology, phenotypes refer to traits that are determined by genetic information and cannot be altered by external factors. For example, a human's hair color is a phenotypic trait because it