When two lions compete for the same habitat, shelter, and food
Lol, check your science book incase im wrong but
a·mi·no ac·id<span>əˌmēnō ˈasəd/</span>nounBIOCHEMISTRYplural noun: amino acidsa simple organic compound containing both a carboxyl (—COOH) and an amino (—NH2) group.
hope i helped a bit
Answer:
pollution.
I looked it up on Google.
2/3 of the cell is made of water