Answer:
c. their shape, which relates to the lock-and-key model 
Explanation:
The primary source of the specificity of enzymes is their shape, which relates to the lock-and-key model 
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plz mark brainliest 
Have a nice day!!!!
 
        
             
        
        
        
A hypothesis<span> is an idea that </span>can be tested<span> by an </span>experiment<span>-These ideas are based upon a person's </span>observations and<span> previous knowledge or experience. </span>
        
                    
             
        
        
        
Embryonic stem cells have the potential to produce regenerated tissues, such as skin. They could provide means of healing diseases such as type 1 diabetes where a particular cell has been lost or is malfunctioning.
        
             
        
        
        
Because the climate is paralyzed so you can’t stand on it or it will fluuuukin fall