PLEASE HELP MARKING PEOPLE AS BRAINLIDT Where do humans obtain essential amino acids?
A. Pasta and bread foods B. Meat/Fish foods
C. Our body makes them D. Foods that contain butter and oils

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of