Less stomata because stomata is the pathway through which water transpires. A cactus' habitat is much drier than normal tropical plants, therefore it would require less transpiration to survive. In order to lessen transpiration, they have less stomata.
It is a pretty big problem ngl
I’m not too sure what you mean by “aneorobic environment” but alcohol is produced by alcoholic fermentation. Lactic acid is produced in lactic acid fermentation, but they both start off with glycolysis because the whole point of fermentation is basically to produce oxygen when your body can’t inhale enough.
