If the PR interval remains constant, but QRS complexes are randomly dropped, this is called a ____ ...

If the PR interval remains constant, but QRS complexes are randomly dropped, this is called a ____ block.
 
  a. third-degree
  b. Mobitz II
  c. Mobitz I
  d. first-degree

Question 2

Which of the following statements regarding the bacteria anthrax is TRUE?
 
  a. It is often seen in veterinary practice, can be spread from person to person, and a vaccine is available.
  b. Anthrax cannot live outside the host and is easily destroyed.
  c. Intestinal anthrax is more lethal than inhalational anthrax due to the incubation time.
  d. There is currently no treatment for anthrax exposure, only supportive care.