What part of speech is stressed in iambic pentameter?

"When we talk, our syllable are either stressed (stronger emphasis) or unstressed (weaker emphasis). For example, the word remark can consist of two syllables. "Re" is the unstressed syllable, with a weaker emphasis, while "mark" is stressed, with a stronger emphasis. :) In poetry, a set of two or three syllables is referred to as a foot. A specific type of foot is an iamb. A foot is an iamb if it consists of one unstressed syllable followed by a stressed syllable, so the word remark is an iamb. Pent means five, so a line of iambic pentameter consists of five iambs - five sets of unstressed syllable followed by stressed syllables." For more information: http://examples.yourdictionary.com/examples-of-iambic-pentameter.html

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