Answer:
Hi
Explanation:
Hi. I just took my AP Exam an hour ago for History. Hope I did good.
Heart because its your respitory system
I might be wrong but I think the answer is Gerontology.
Hope this was helpful XD
Answer: the branch of science concerned with the bodily structure of humans, animals, and other living organisms, especially as revealed by dissection and the separation of parts:
Explanation: