It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
convergent boundry (subduction zone)
hope this helps! ❤ from peachimin
<span>A Cell Address describes the location of a cell based on its column and row location. A combination of the letter and a number that specifies the column and the row in which a cell is located on a spreadsheet.</span>
Acetylcholine, sometimes shortened to ACh.