It describes a market with plenty of buyers and firms, identical products, price takers towards firms and consumers, and no set of barriers for new firms. The prices are established through the communication of the market's supply and demand.
Answer:
A vaccine (or immunization) is a way to build your body's natural immunity to a disease before you get sick. This keeps you from getting and spreading the disease. For most vaccines, a weakened form of the disease germ is injected into your body.
Explanation:
Either a or b. I don't know the story though but good luck.
Alguien te pudo ayudar o todavía necesitas ayuda?
When he was done would be the sentence fragment. The rest are complete thoughts.
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