Answer:
observation hypothesis experiment and conclusion 
Explanation:
the experiment must be able to disprove the hypothesis in order to insure integrity 
 
        
             
        
        
        
The first sentence; I went to with Joey Campbell, who lived next door; is wrong because there is no subject before the name Joey
        
             
        
        
        
Answer: Allusion
Explanation:
An allusion is an expression which is used to call someone or something to mind Eben though that particular thing is not mentioned explicitly. It is an indirect reference.
Most allusions in literature assumes that the reader has already has some knowledge regarding what's discussed and therefore should be able to understand the indirect reference. 
 
        
             
        
        
        
Answer:they do not fully understand the medical condition of the main charwcter
Explanation: