Answer:
sorry i will not b able to help on this
Explanation:
Since pathogens are easily passed from person to person, they need large populations to spread and survive. If they did not have a large population, the pathogens would die out.
B
Social norm.
Greeting is a social norm, it is not a social expectation.
Answer:
Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins, and the heart chambers.
Diseases that are referred to as emerging infectious diseases have only been discovered in the past fifty years. This is a false statement.
<h3>What are emerging infectious diseases?</h3>
Emerging infectious diseases are those diseases that have recently affected a known population within the pass 20 years
Therefore, Diseases that are referred to as emerging infectious diseases have only been discovered in the past fifty years is a false statement.
Learn more about diseases here:
brainly.com/question/934133
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