"Alveoli" <span>is where gas exchange takes place between the lungs and the blood.
Hope this helps!</span>
        
             
        
        
        
I think but I do not know it refered to as being repetitive
 
        
             
        
        
        
Where is the image for the cells?
        
             
        
        
        
Answer:  "photosynthesis" .
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<u>Note</u>:  These small, moving "green disks" seen while observing an <em>Elodea</em> plant cell—under a microscrope— are "chloroplasts".   The "chloroplasts" are organelles that ar responsible for "photosynthesis" .
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