I think its rough and jagged. Do you know the answer?
Answer:
숨을 들이쉴 때마다 폐포가 공기로 채워져 폐가 확장됩니다.
Explanation:
도움이 되기를 바랍니다 !!
A is the answer. Hope that helped.
Cellular respiration
The equation is
glucose + oxygen —> ATP(usable energy) + carbon dioxide + water