Answer:
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Of the more than 7,000 chemicals in tobacco smoke, at least 250 are known to be harmful, including hydrogen cyanide, carbon monoxide, and ammonia (1, 2, 5). Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer. These cancer-causing chemicals include the following (1, 2, 5)
Explanation:
I believe the term you are looking for is puberty.
The periodontium is the specialized tissues that both surround and support the teeth, maintaining them in the maxillary and mandibular bones. The word comes from the Greek terms περί peri-, meaning "around" and -odont, meaning "tooth". ... Alveolar bone proper. The answer is C
Answer:
D.
Explanation:
A. just isn't true. B. isn't true either because, like bacteria, we are adapting to their changes. C. isn't right either because some bacteria helps us survive. D. is the only true statement.