Answer:
Covalent bond is a primary chemical bond formed by the sharing of electron pairs
Hydrogen bond is a weak electrostatic attraction between the hydrogen and an electronegative atom due to their difference in electronegativity.
 
        
                    
             
        
        
        
The probability of having the first child with long ear lobes is half
 
        
        
        
<span> Eukarya 
because it is made up of eukaryotic cells
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