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Basic units of all forms of life is D, the cell. Cells can be found in any living thing.
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Sodium bicarbonate and digestive enzymes.
        
             
        
        
        
Explanation:
a thermocline is an abrupt temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.
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Because there is oxygen being used, the body can create 32 ATP instead of 2 ATP like in fermentation