As competition has become truly global, free trade has resulted in prices and quality across virtually every product category.

lower prices and higher quality

Explanation:

Remember that the competition will make that more people is selling the same or similar products. Because of competition, the sellers most make an effort to offer better products, maybe because is a different material, maybe because the process is cheaper. Free trade will open a door to any seller around the world to sell with quality the products but at the same time to reduce the math examn.  

answer; polycythemia is the correct answer;

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.