Because it ionic bonding and
        
             
        
        
        
Answer: Option 4(D)- Does it have a rounded tail?
Got it right on ED 2020, Good luck!! :)
 
        
             
        
        
        
Answer:
option A 50%
Explanation:
Ability to roll the tongue is dominant to people who cannot. thus only one copy is needed for the trait to be expressed. Thus, a tongue roller could be XTXT, XTXt or XTY and a non could be XtXt and XtY.
Thus one can have the highest percentage of non-tongue roller to be 50% which is from a cross between a tongue roller male and a non tongue roller female.
 
        
             
        
        
        
Binary fission enables them to reproduce quickly.