Take a look at "Understanding the Black Death." Why was the bubonic plague so virulent in the 1300s? Support your answer with evidence from the article.

Because in the 13th century there are no antibiotics to contain the disease.

Explanation:

Bubonic plague is a disease caused by bacteria. It is easily treated today, as we have a wide range of antibiotics. However, antibiotics were only discovered in the 20th century. In this case, before the 20th century, bubonic plague was a very dangerous disease and since it does not have a treatment to eliminate it, it became extremely violent, infecting people simultaneously and quickly.

would cloning of animals be allowed to prevent extinction?