Potable water is water that is safe to drink
        
             
        
        
        
Answer: Explanation:
Sickle hemoglobin differs from normal hemoglobin by a single amino acid: valine replaces glutamate at position 6 on the surface of the beta chain. Therefore the red blood cell bends differently giving it a sickle shape
 
        
                    
             
        
        
        
1. Intensity.
2. Duration of shaking.
3. Nature of material upon which structure rests.
4. Nature of building materials and the construction practices of region.
        
             
        
        
        
Explanation:At each target effector, dual innervation determines activity. For example, the heart receives connections from both the sympathetic and parasympathetic divisions. One causes heart rate to increase, whereas the other causes heart rate to decrease.
 
        
             
        
        
        
Answer: Options A, B, D and E. 
A. Process for initiating.
B. standard reporting format.
D. process for synthesizing the body of evidence.
E. process for finding and assessing individual studies.
Explanation:
Systematic review is a scientific process which combines findings from research using random sampling of works from different source of a particular subject and integrating them into a powerful and clinically useful report to guide practice. It is a form of paradigm that guides and aids further research in a particular field. 
However, there are components to be considered in other to create a perfect resolution. Initiation of the process begins with gathering of research from different source. 
Then, individual research work is also accessed to derive facts and putting up a standard report to explain the total discovery.