This document outlines the requirements for a week 3 discussion forum post, asking students to choose 1 of 2 discussion questions to answer in at least 250 words by Wednesday with 2 references in APA format. Students are also asked to reply to 2 classmates' discussion posts by Saturday with replies of at least 100 words each that do not include references in the word count. The first discussion question asks about the relationship between the structure and function of lymphatic capillaries and differences between lymphatic and blood capillaries.