D. Phytoplankton are most efficient 
 
        
             
        
        
        
Answer:
Aspirin, ibuprofen, or acetaminophen.
Explanation:
 
        
             
        
        
        
Answer:
<em><u>carbon dioxide</u></em>
Explanation:
hope this helps you!!!
 
        
             
        
        
        
<span>D. Temperature and pH can affect how enzymes work.</span> The action of enzymes can be affected by many factors including temperature, pH and ionic strength. Optimum pH differs per enzyme. Enzymes can be destroyed by heat more than the allowed optimum temperature.
        
             
        
        
        
Answer: enzymes change the Keq for chemical reactions.
Explanation: many enzymes change shape slightly when substrate binds. reactions occur at the "active site" of enzymes, where a precise 3D orientation of amino acids is an important feature of catalysis.