Answer:
Biography
Explanation:
Biography is called a study of the distribution of the species and the geographic space. Modern biographies combine information and ideas from a different field. such as physiological and ecological constraints.
There are differences between the habitat and the species of the organisms that describe the application of the biography.
Thus here when the family was taking a long driving vacation across the mid western and the western United States. Their differences in the distribution of the species are the part of the biography.