Population characteristics refer to the traits and features of a specific group of people. These can include factors such as age, gender, ethnicity, and income level. Understanding these characteristics helps researchers and policymakers identify the needs and preferences of different communities, which can lead to better services and programs. Another important aspect of population characteristics is how they change over time. For example, the birth rate and death rate can influence the overall size and structure of a population. Additionally, migration patterns can introduce new cultural influences and shift the demographic makeup, impacting everything from local economies to education systems.