You Have Isolated a Bacterium That You Believe to Be

question 54

Multiple Choice

You have isolated a bacterium that you believe to be the causative agent of a new disease in frogs. How would you test the third of Koch's postulates?

• A) Determine the shape of the bacterial cells.
• B) Inject the bacteria into a healthy frog.
• C) Isolate the bacterium from a sick frog.
• D) Show that the bacterium is not present in healthy frogs.
• E) Grow a pure culture of the bacterium outside the frog.

---

Definitions:

Strike

A work stoppage caused by the mass refusal of employees to work, typically to protest against terms of employment or working conditions.

Picket Lines

A boundary established by workers on strike, especially at the entrance to the place of work, meant to show unity and to discourage others from entering the premises.

Unfair Labor Practices

Actions by employers or unions that violate the rights of employees or union members, as defined by labor laws and regulations.

Cease-And-Desist Orders

Legal orders issued by a governmental authority or court to halt an activity or practice considered illegal or harmful.