 
			 
			MCQOPTIONS
 Saved Bookmarks
				| 1. | During exposure to a foreign invader, there are more __________ present in the vertebrate body than before exposure | 
| A. | antibodies | 
| B. | lymphocytes | 
| C. | macrophages and antigens | 
| D. | all of these | 
| Answer» E. | |