Answer:
The first human lung transplantation was performed on June 11, 1963 at the University Hospital, Jackson, Mississippi by James D Hardy and his team.
Answer: The integumentary system helps the immune system by The skin acts as a barrier to keep out pathogens (B)
Explanation:
I'd say that I was sick, hurt myself accidentally, or say that you aren't comfortable in that kind of situation <span> ¯\_(ツ)_/¯</span>