Final answer:
Alaska, Maine, and New Mexico are similar in having significant Hispanic populations and Native American histories, using natural resources such as oil, gas, and forestry for their economies, and utilizing the caucus system in elections.
Step-by-step explanation:
Alaska, Maine, and New Mexico share several commonalities, including diverse geographic characteristics and political practices. They all have a significant Hispanic heritage, with New Mexico having the highest percentage of Hispanic residents among them. Economically, these states utilize their natural resources effectively. Alaska is known for its oil and natural gas reserves, while Maine's economy is heavily dependent on forestry, specifically manufacturing related to paper and wood products. All three states also use the caucus system for political nominations, which is a notable aspect of their electoral processes. Additionally, they all have significant Native American populations and histories, particularly Alaska, where there was a strong movement for Native American civil rights.