They help work together because when the heart pmps blood through the body and the cells flow through the blood non stop its like a barrier of protection
        
             
        
        
        
The answer is A. The ratio goes down as the size of the cell gets larger.
        
             
        
        
        
Answer:
slower
Explanation:
winter days shorter farther from the sun causes stuff
 
        
                    
             
        
        
        
Answer:
The correct answer is option 3. removal of hydrogen atoms from lactic acid.
Explanation:
In anaerobic conditions, it ferments to generate lactic acid. It is two way or reversible process in which oxidation of lactic acid produces pyruvic acid and NADH.
This process involves the removal of hydrogen atoms from the lactic acid and produces NADH and H⁺ in the presence of lactate dehydrogenase enzyme and convert into pyruvic acid.
Thus, the correct answer is option 3. removal of the hydrogen atoms from lactic acid.