how lymph forms and returns to the bloodstream and How B cells recognize and respond to an antigen

Please create two paragraphs. The first paragraph responding to post one and the second paragraph responding to post two (attached)
Advance the discussion or extend discussions already taking place.
Please add new information not previously discussed. Pose new possibilities or opinions not previously voiced. Consider new factual information tied with critical thinking. Interesting and current research on the topic.
Please do not  summarize the post and agree/disagree.
Appropriate scientific college-level sources were used. Post contained APA formatted references and in-text citations.