It is Chromosomes
Meaning: Chromosomes is a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
        
             
        
        
        
Answer:
I am a in
Explanation:
I apologize I don't know the answer
 
        
             
        
        
        
I would say A. CcSs ( sorry if it’s wrong)
        
             
        
        
        
About 38% of animal protein comes from fish