You are presented with the question "passive immunity lasts only as long as what survives in body fluids?" and the following answer choices: 
- Energy.
 - gammaglobulins
 - heat or cold
 - bacteria
 - Chemical energy
 - parasites
 - Leptospirosis
 - Veins and arteries.

Now knowing that passive immunity lasts only as long as the antibodies survive in body fluids and antibodies are also called gammaglobulins, choose the best answer.


 

  gammaglobulins       