To prevent chemical cross-contamination the proper location of surface bait stations is to place rodenticide baits rightly into rat burrows. This may have a quick result and rapid bait uptake and effective treatments for those who have neophobia that avoids bait stations.
        
             
        
        
        
I believe the answer is (a) variability
        
             
        
        
        
Answer:
A fact is a statement (a claim) about something that is true
Non Fact is something (such as a statement) that is not a fact
Explanation:
 
        
             
        
        
        
The nervous system responsible for keeping your hesrt beating is autonomic.
        
                    
             
        
        
        
Answer:
Lymphocytes produce antibodies