When you get a vaccine it injects a controlled amount of the illness into you, so the immune system can build up an immunity. The memory cells come into play when the illness comes back.
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If in cities, they would live in small, urban houses called row houses. The upper class either inherited their affluence or developed their wealth during the Gilded Age through industry and large businesses. They were usually Protestant Christians and came from Britain, Germany, France, or Holland.
Explanation:
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its not exactly possible to verify an answer for it, because this question is to be answered with YOUR personal opinion. theres no right/wrong, its simply for participating
Answer: Perry's expedition demonstrated the power of modern western states, which Japan imitated during the Meiji Restoration.
Explanation: Give me the brainiest
James Madison was the fourth president of the united states