Final answer:
Artists in the mid- and later 20th century expanded art by blurring the lines between art and life, embracing new mediums, and incorporating diverse perspectives and ideas.
Step-by-step explanation:
In the mid- and later 20th century, artists expanded art beyond traditional mediums and integrated it into life in various ways. They challenged the boundaries of art by incorporating new techniques, materials, and technologies, and embracing diverse subject matters and themes. For example, the rise of video and performance art allowed artists to explore time-based and interactive forms of expression.
Additionally, non-Western art gained prominence and influenced the art world, contributing to a more global perspective. Overall, artists in the mid- and later 20th century expanded art by blurring the lines between art and life, embracing new mediums, and incorporating diverse perspectives and ideas.