Answer:
Science approaches data in a subjective manner....
Though the Krebs cycle does not directly require oxygen, it can only take place when oxygen is present because it relies on by-products from the electron transport chain, which requires oxygen. TheKrebs cycle is therefore an aerobic process.
The answer is microevolution
Mitosis occurs in somatic cells when a liver cell divides to create new liver cells it will create identical daughter cells, identical to the parental cell, this guarantees the genetic composition, function and type of cells from one generation of cells to the next.