The pH scale measures the concentration of how acidic or basic something is. The lower the number below 7, is acidic. Above 7 is basic. 7 is waters purest form.
        
                    
             
        
        
        
The answer would be:
Cilium
<u>Here is more about the structures of prokaryotic cells:</u>
Axial filament is a bundle of flagella that are wrapped around the cell's body. 
Flagellum is what the prokaryotic cell has that is whip-like in structure. It helps with the motility of the cell.
Pilus is a hair-like structure that are found on the surface of prokaryotic cells. They help the cell attach itself to surfaces.
Peritrichous flagella are several flagella that can be found all over some prokaryotic cells. 
 
        
             
        
        
        
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Hope it's helpful to u dear. 
 
        
             
        
        
        
Answer:
The resolving power of an objective lens is measured by its ability to differentiate two lines or points in an object. The greater the resolving power, the smaller the minimum distance between two lines or points that can still be distinguished. The larger the N.A., the higher the resolving power.
Explanation: