I will discuss each of them in turn:
Their use will make a bad presentation good.
-no, this is false: just inserting graphics will not save a bad presentation. 
There should be at least one graphic element on each slide.
-this is also false: the decision whether there should be a graphic depends on the content of the presentation!!!
They should be appropriate and relevant to
the presentation's content.
-yes, this is true and probably the most important rule!
They should be large enough to be seen by
your audience.
-this is correct! if they can't be seen then they're only confusing the audience!!!
They should only be used when they enhance the content of
the presentation.
 -this is also true!
        
             
        
        
        
Answer:
prisoners 
Explanation:
Prisoners have been popular victims(research subjects) of illegal research in the past and so laws have been put in place to prevent this. 
Prisoners are classified as "vulnerable" under federal regulations that regulate research with prisoners. This is because their informed consent and voluntary decision to participate in any research brought before them is somewhat compromised. The health and human services(HHS) in addition to other regulations have added additional requirements for research on prisoners such as the requirement of a prisoner or prisoner representative in the IRB. 
 
        
             
        
        
        
Answer:
Ego  
Explanation:
The ego is the part of the personality that was proposed by Freud. In ego, a person deals with reality. It is based on realistic principles. Ego is like that maintain a relationship with Id and Superego. In this process, Ego developed from Id but it ensures that a person takes a decision based on reality. 
The behavior that is acceptable in society. Ego work in conscious, precociousness and Unconsciousness. It satisfies the desires of Id that is based on the pleasure principle. The ego helps a person to discharge the stress and tension created by Id impulses when desires do not meet due to some reasons. 
 
        
             
        
        
        
Answer:
Reflecting feelings or reflection of feelings
Explanation:
When someone reflects on another person's underlying feeling in a statement to that same person that they are engaging in reflecting feelings or reflection of feelings. This is normally done by psychologist or by someone who is trying to educate someone in regards to their behavior. These underlying feelings are often reflected through behavior, way of talking and body language and therefore, can be an important tool for parents and teachers to evaluate children and assist them in understanding and regulating their feelings.
 
        
             
        
        
        
Answer:
The answer is the hindshight bias.
Explanation:
The hindisght bias occurs when a person believes an event was more predictable than it really was. For this reason, it is often referred to as the "knew-it-all-along bias". This phenomenon causes memory distorsion, and in turn can also explain overconfidence about predicting future events.