Final answer:
In poetry, the rhythmical pattern of a poem is called its meter, which consists of stressed and unstressed syllables. The number of accented syllables in each line of a poem is determined by the meter or foot used. Without further context, a more specific answer cannot be provided.
Step-by-step explanation:
In poetry, the rhythmical pattern of a poem is called its meter. The meter is analyzed by identifying stressed and unstressed syllables in each line. Each complete unit of stressed and unstressed syllables is called a foot, which usually consists of one stressed and one or two unstressed syllables.
Based on the given information, if each line except the last one contains a particular number of accented syllables, then we can infer that the question is referring to the number of feet in each line. For example, if a poem predominantly uses iambic meter (which consists of one unstressed syllable followed by one stressed syllable), then each line, except the last one, would contain one accented syllable or one foot.
In order to provide a more specific answer, it would be helpful to know the specific type of meter mentioned in the question or to have additional context.