TWO parts, a good answer for each (CONTENT) will require at least 300 words each.    You can use Campbell, but DON’T SIMPLY COPY or barely paraphrase any Tables or text.    If you use any outside sources (NOT health website, K-12 schools or Khan Academy, etc…), you must cite them.  A).  Barrier defenses in Innate immunity are a first line of immune response.   Discuss (SPECIFICALLY) the impacts of MUCOUS MEMBRANES (e.g., found in the alimentary tract, respiratory tract and urinary tract) and their contributions to INNATE IMMUNITY    DO NOT just copy from Campbell  or other sources.  DO NOT simply DESCRIBE ALL Barrier Defenses. B.  Helper T-cells participate in, or have a role in almost all adaptive immune responses.     Describe all the ways that Helper T-cells are key components to both humoral and cell-mediated immune responses (and in particular their interactions with “memory cells”). Discuss how the Helper T-cells of people who have recovered from COVID-19 could provide long lasting immune responses for them in response to a 2nd exposure. DO NOT just copy from Campbell or other sources.   DO NOT simply DESCRIBE all forms of Adaptive Immunity