The answer is C. 
Chromosome are dark staining structures in a cell nucleus on which the organism genes (DNA Molecules) are arranged, -I.e Chromosome are the carriers of genes
        
             
        
        
        
<span>the function of the mucus blanket in the lungs is to filter and moisten the air.</span>
        
                    
             
        
        
        
No todas las bacterias son perjudiciales los lactobacilos son bacterias que ayudan en la digestión
        
             
        
        
        
It is one of the most powerful mood-altering chemicals. It was discovered in 1938 and is made from lysergic acid, which is found in ergot, a fungus that grows on rye and other grains.