Answer:
true
Explanation:
because it can catch heat waves and other things
 
        
                    
             
        
        
        
Answer:A
Explanation:it’s being change by a mixture of substances put together
 
        
                    
             
        
        
        
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
        
             
        
        
        
Enters the left atrium...this is the oxygenated blood from the lungs (pulmonary)