Answer:
exchange carbon dioxide for oxygen,help with the movement of the blood cells that pump oxygen-rich blood to all cells in the body. 
Explanation:
 
        
                    
             
        
        
        
Answer:
The incorrect statement is stem cells are specialized.
Explanation:
By their nature stems cells are unspecialized because they are undifferentiated. This means that they have not yet been assigned a specific role in the body.
 
        
             
        
        
        
heat causing an excess of transpiration
 
        
             
        
        
        
Answer:
Answer is D
Explanation:  Experiments in food industry have demonstrated that <u><em>Clostridium botulinum</em></u> spores are highly resistant to radiation, so then <em><u>Clostridium botilinum</u></em> in canned food,must be controlled by high temperatures (around 120 Celsius degrees)or acid pH (lower than 4,7) in canned food.