Answer:
A. heterotrophic,chitin in cell walls 
Explanation:
 
        
             
        
        
        
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Answer:
1. 0% will be homozygous dominant, 100% will be hetrozygous, 0 % will be homozygous recessive
2. 25% will be homozygous dominant, 50% will be hetrozygous, 25 % will be homozygous recessive
Explanation:
1. see the attachment for Punnet square
BB: homozygous(black) rabbit
bb: homzygous ( white) rabbit
2. see the attachment for Punnet square
Bb: hetrozygous(brown) rabbit
 
        
                    
             
        
        
        
Answer:
Species adapted to drier environments will replace species less suited to the new climate.
Explanation:
 
        
             
        
        
        
Answer:
According to the current fossil record, scientists believe that the life on earth began about 3.5 billion years ago.