Question

s1 unit test: characteristics of life
possible points 4
the german physician robert koch provided evidence to support the germ theory of infectious disease. koch isolated bacteria from a sick cow with anthrax, then injected the bacteria into a healthy mouse. what must have happened to support the germ theory?
it had no effect on the healthy mouse
the healthy mouse was cured by a vaccine
the healthy mouse was immune, so it did not get sick
the healthy mouse must have gotten sick

Explanation:

The germ - theory of infectious disease posits that microorganisms (germs) can cause disease. If bacteria from a sick cow are injected into a healthy mouse, for the germ - theory to be supported, the healthy mouse should become sick as the bacteria are the disease - causing agents.

Answer:

The healthy mouse must have gotten sick.