The baby is adopted by them because if it was born by the mother then the baby would have the same blood type A
        
             
        
        
        
Answer:
Cranial capacity increased the most from 2 million years ago to the present.
Explanation:
The rate of change is greatest between 2 million years ago and the present.
 
        
                    
             
        
        
        
Hi!
Question - How do mutations lead to variation
Answer - B. By producing changes in the genetic code
Why -  "In which can create entirely new alleles in a population"
 
        
             
        
        
        
The answer is choice C 50%
        
                    
             
        
        
        
Answer:
Answer is
C) Lysozyme 
this is an enzyme that kills bacteria