Yes, he does have family history of heart disease.
<span>They are the Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.</span>
The process of metal refining is done for the purpose of fixing the metals impurities through the reduction process. On the other hand, problems are encountered in doing this process. Metal refining produces refined metals but the main downside of this process is the production of too much waste after.
The answer to your question is D, a decrease in oxygen levels in the blood during exercise.
Hope this helps!
