Final answer:
Anthromes in the United States, including along the west coast, are distributed in a manner that corresponds to human settlement and economic activities, with urban areas showing denser populations and a larger array of economic opportunities compared to rural areas.
Step-by-step explanation:
The distribution of anthromes, also known as anthropogenic biomes, on the west coast and across the United States reflect patterns of human settlement and the associated economic activities. Anthromes are not evenly distributed; rather, they are aligned with population density and economic activities. Urban areas, for instance, show a higher concentration of modified landscapes to support their infrastructure and livelihoods. On the west coast, historical evidence of the Pacific Northwest indicates that the abundance of natural resources led to dense settlements with complex social structures, as seen by the permanent towns during winter and the hierarchical organization of society. In today's context, this correlates with urban development where economic opportunities are greater due to the availability of resources. The vast, varied spread of anthromes in the U.S. correlates with this principle; there are densely populated urban anthromes in cities, which double as economic hotspots, such as Los Angeles and San Francisco, and sparse, rural anthromes where the land is used differently, such as in agricultural or conservational manners.