the answers I put is wrong 
 
        
             
        
        
        
Answer:
(1)
Explanation:
there are different divisions of the spinal cord but as a whole there are 31 segments
 
        
             
        
        
        
Proteins and DNA replications are made from two phases the transcription and translation. Transcription happens in the nucleolus, where it produces mRNA and translation in the ribosomes. 
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I think it’s B I’m not for sure