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.
The correct answer is A. and B. !!
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Answer:
<h3>A. Quackery</h3>
Explanation:
Quackery is practicing medicine, or other accredited health professions by a dishonest or an incompetent person with little or no professional preparation to do what he claims he can do.
A person who promotes or sells health product or service that is unproven or ineffective is describing as quack.
Quackery is a type of medical fraud that plays on human emotion, weakness, and fear.
So, the correct answer is "A. quackery".
Some would be eating out more often with increased calorie consumption,
Increased time in front of television/computers, Less activity and less engagement in sports and physical play
I think it’s a - it doesn’t use radiation
