Final answer:
Archaeological methods for studying populations of the past differ in regard to methods used to study populations of the present, such as the ability to do ethnographic research, the need for archaeological surveys, and reliance on ecofacts.
Step-by-step explanation:
In regard to the methods used to study populations of the past and the present, one way that Archaeological methods differ is that ethnographic research can be done on populations of the past, but not the present. Ethnographic research involves studying the cultural practices, beliefs, and behaviors of a specific group of people. Since populations of the past are no longer around, archaeologists can only rely on the artifacts and remains left behind to understand their cultures. Another difference is that when studying populations of the past, archaeologists often need to conduct archaeological surveys to locate and uncover artifacts and cultural remains. This is because the past populations and their settlements may not be readily visible or accessible. In contrast, when studying present populations, researchers may have the opportunity to directly interact with the people and observe their practices without relying solely on archaeological methods. Additionally, when studying present populations, especially nomadic ones, researchers may have to rely more on what is left behind than they do with past populations. For example, nomadic populations may not leave permanent settlements or structures, so researchers have to focus on ecofacts, such as seeds or animal bones, to understand their lifestyles and activities.