You may also be surprised to learn that many STIs have no symptoms so those infected may be unaware that they are spreading the disease to others. The most common sexually transmitted infections in the United States are HPV, chlamydia and gonorrhea
Answer:
I would say A, because B says that a proper amount makes tasks harder, which won't make sense. C say too little sleep makes tasks easier, but too little sleep makes tasks harder. Lastly D is the same as B.
ANSWER: pineal gland
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Answer: D
When dealing with achol problem you should always talk to a doctor
Explanation:
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