They all depend on each other to function; an impact to one sphere usually affects another
The liver is inferior to the diaphragm.
Answer:
the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.
A is for sure an answer , i’m pretty sure C -ISNT- an answer . for b and c, someone can comment on it.