Answer:
Explanation:
Diagnosis - A disease must be diagnose this can be done by group of expertise. They diagnose one to two persons with the disease asking them questions about their state of health, how they were expose to the illness. This enable them have enough evidence as regarding the disease. 
Signs and symptoms - signs are traces to a disease it is determined by an experts while the symptoms are the abnormalities or changes that indicate the disease. 
 
        
             
        
        
        
Hello! The answer is cell
        
                    
             
        
        
        
Answer:
a substance that has a ph level less than 7
Explanation:
 
        
             
        
        
        
Answer:
2 membrane layers cover up the nucleus 
 
        
                    
             
        
        
        
Answer:
The movement of proteins and enzymes within a cell is facilitated by intracellular receptors.
Explanation:
Proteins and enzymes (which also are proteins) move inside the cell through intracellular receptors. These receptors are proteins capable of binding other molecules such as proteins and hormones in order to transport them to different cellular locations. Thus, intracellular receptors are key players in signaling pathways that trigger signaling events to regulate a particular function, for example, activating gene expression by transporting proteins to the nucleus.