How co-evolution of symbiotic prokaryotes with eukaryotes similar and different to co-evolution in parasite-host systems is that <span>co existing has provided a sense of advantage with in the environment. One example of this are the parasites. There are different kinds of symbiotic relationships and this shows how similar and different co-evolution is. Hope this helps.</span>
a compound of the sterol type found in most body tissues. Cholesterol and its derivatives are important constituents of cell membranes and precursors of other steroid compounds, but a high proportion in the blood of low-density lipoprotein (which transports cholesterol to the tissues) is associated with an increased risk of coronary heart disease.
Bauxite.
Because bauxite it mainly aluminium oxide however with some impurities
therefore its taken to a bauxite plant where the impurities are removed and the result is white aluminium oxide ( alumina).
Aluminium is then extracted from alumina by electrolysis