Most of the time m (M) means male and f (F) means female.
        
             
        
        
        
The answer is A because with rna G and C always go together and A and U always go together
        
             
        
        
        
Answer:
Proteins
Explanation:
Wholemeal bread is a rich source of carbohydrates and protein along with unsaturated fats, vitamins and minerals. Hope this helps.
 
        
             
        
        
        
Answer:
B 
Explanation:
Arteries and arterioles (small arteries) have muscular walls. They're the main blood vessels involved in vasoconstriction. ... Capillaries are tiny, thin-walled blood vessels that can't constrict.