Question

from 1346 to 1353, the black death lay across england. today we know what this devastating disease and we can treat it by abolishing what bacteria? bacillus anthracis yersina pestis francisella tularensis rickettsia rickettsii question 9 (1 point) what type of immunity results from recovery from mumps? artificially acquired passive immunity naturally acquired active immunity artificially acquired active immunity innate immunity

Explanation:

First Question (Black Death Bacteria)

The Black Death (plague) is caused by Yersinia pestis. Bacillus anthracis causes anthrax, Francisella tularensis causes tularemia, and Rickettsia rickettsii causes Rocky Mountain spotted fever. So the correct bacteria for treating Black Death is Yersina pestis (note: correct spelling is Yersinia pestis).

Recovery from mumps means the body naturally (without artificial intervention like vaccines/antibodies from external sources) develops active immunity by producing antibodies and memory cells after being exposed to the mumps virus. Artificially acquired passive/active involves external means (like vaccines or antibody injections). Innate immunity is non - specific, present from birth. So naturally acquired active immunity is correct.

Answer:

B. Yersina pestis (correcting the spelling, the intended correct option is the one with Yersinia pestis, likely the second option in the list)

Second Question (Immunity from Mumps Recovery)