Body paragraphs are important in developing the argument of the essay. Within this paragraph, 1 idea should be clearly expressed, supported with relevant literature and examples. Think of it as a way to build your argument.
The most commonly recommended body paragraph structure is that of the TEE(C)L pneumonic, C isn't always included but it can certainly be helpful
Topic sentence - provides the reader with an idea of the main idea
Explanation - provide great detail to explain your prior sentence
Evidence - use literature to support your idea
(Comment - Critically appraise strengths or weaknesses or how the evidence supports your idea)
Link - Summarise the main idea and link to the overall argument and ideally, the next paragraph.