Answer:
C
Explanation:
Arrow 1 represents the promoter for RNA II.
 
        
             
        
        
        
Answer: TOXICOLOGY
Explanation: Toxicology is a branch of science that studies that adverse effects that occurs in living organisms when exposed to chemicals and physical agents.
Toxicology deals with risk assessment.
In toxicology, observation and reporting of the symptoms, mechanism of action, detection and treatment of toxic substances when exposed to living organisms especially humans are carried out.
The knowledge of toxicology aids in the advancement of environmental health.
 
        
                    
             
        
        
        
Explanation:
respiration because it's about blood circulation 
 
        
             
        
        
        
I’m not sure that your choices are because it says select all that apply but I would tell the mother to stop giving the baby cows milk. The baby needs more iron which is in breast milk or formula if not she can become anemic and cows milk is not easy to digest for babies.
        
             
        
        
        
Cystic Fibrosis is a genetic mutation