Cell membraine i hope that help
        
             
        
        
        
Inhale and exhale because you inhale the oxygen and exhale the carbon dioxide
        
                    
             
        
        
        
First the question is asking If a descision was made to drain the wetlands which a wetlands is haves rich soil and nutrients which is good for farming and an agricultural action means someone would clear out a forest of farming reasons so I would say the answer is A
        
                    
             
        
        
        
Answer:
las enzimas son proteínas y aceleran reacciones químicas.