Blood<span> is a heterogeneous </span>mixture<span> because the </span>blood<span> cells are physically separate from the </span>blood<span> plasma. The cells have different properties than the plasma. The cells can be separated from the plasma by centrifuging, which is a physical change. Since it can be separated mechanically, it is not a chemical compound</span>
        
             
        
        
        
First:mRNA Second:Cytoplasm
        
                    
             
        
        
        
Answer:
B) number of muscle cells ❤️