Boys need 2,400 to 3,200 a day, while girls need 1,800 to 2,400 a day.
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Answer:
Narrow-spectrum antibiotics target a few types of bacteria. Broad-spectrum antibiotics target many types of bacteria. Both types work well to treat infections. But using broad-spectrum antibiotics when they're not needed can create antibiotic-resistant bacteria that are hard to treat.
Answer: They are also known as <u>B. tranquilizers</u>
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