What is the purpose of the introduction of an essay

Why does henry david thoreau think imprisonment is ineffective?

Use morphology and syntax to make grammatical sense of the following sentence (mark all that the ova of all mammals except the monotremes undergo holoblastic segmentation. the -s inflection indicates that monotremes is a plural noun. the suffix -ic indicates that holoblastic is an adjective. the suffix -ation in the word segmentation is a noun-forming suffix denoting a process. the -s inflection indicates that monotremes is a possessive noun.

Why should college athletes not get paid for play claim: state the point of a of why they shouldn't then direct quotation to support why they shouldn't then explain a point b then direct quotation to support point b that you just answered above