<span>in an environment where there is little or no oxygen. aerobic respiration requires oxygen ad when it is not present fermentaion (anaerobic respiration) occurs because it works when oxygen isn't there</span>
A. The argument recently in science has been the rising levels of carbon dioxide which is major component of climate change
The nucleolus is inside the nucleus
D is the answer hope this helped
Cell, Tissue, Organ, Organ System, Organism
