<u>Answer:</u>
The series dilution method is the step wise dilution technique where the dilution factors remain constant in each step.  
The advantages of using the series of dilution method over simple dilution are stated below: 
<em>a)        Aids in reduction of a dense culture of cells to a more usable concentration.</em>
<em>b)        In every step of dilution the specific amount of bacteria is removed. </em>
<em>c)        Helps in the estimation of concentration of an unknown sample.</em>
<em>This sums up the advantage of using the series dilution technique.</em>
 
        
             
        
        
        
The answers for 12 questions in attached pdf.
 
        
        
        
Mitosis and cytokinesis divide a parent cell into two IDENTICAL daughter cells
        
             
        
        
        
All accept for “in some cultures there’s an increased risk for certain diseases” and “the populations live at extreme altitudes” because both of these statements do not relate to cultural values