Final answer:
In poetry, the groups of stress and non-stresses are best described as feet. Scansion helps identify stressed and unstressed syllables in a poem's meter.
Explanation:
Foot is the term that best describes the groups of stress and non-stresses when breaking down the flow of a poem. Each foot consists of stressed and unstressed syllables, with the most common stress pattern being the iamb (unstressed syllable followed by a stressed syllable).
By analyzing a poem's meter, which is the rhythmic pattern, we can identify stressed and unstressed syllables within each foot. This process of dividing lines into feet and stresses is known as scansion.
Learn more about Poetic Meter here:
https://brainly.com/question/20054100
