A/An _____ is the sudden blockage of a pulmonary artery by ...

[Mr. Wonderful]

A/An _____ is the sudden blockage of a pulmonary artery by foreign matter.
 A) pulmonary embolism
  B) pulmonary edema
  C) airway obstruction
  D) respiratory failure

Question 2

A/An ___________________ _ is a disease-fighting protein created by the immune system in response to the presence of a specific antigen.
 Fill in the blank(s) with correct word

[abctaiwan]

Answer to Question 1

A

Answer to Question 2

antibody

[Mr. Wonderful]

Thanks for the timely response, appreciate it

[nathang24]

Excellent