Answer:
Public Service Announcement (abbreviated PSA)
Answer: A.
Explanation: a system of alternative medicine based on the theory that diseases can be successfully treated or prevented without the use of drugs, by techniques such as control of diet, exercise, and massage.
The answer to this question is attached.
Explanation:
Labeled Structure of the Jaw is attached. I hope this would help you in figuring out what you are looking for.
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Answer:
natural ammunity
Explanation:
immunity possessed by a species or race that is present in an individual at birth prior to exposure to a pathogen or antigen.