Carbon dioxide is what humans exhale, giving trees carbon dioxide will produce oxygen 
 
        
                    
             
        
        
        
Parasympathetic nerves govern involuntary actions such as pupil dilation, peristalsis, gland secretions, etc.
        
             
        
        
        
This is only explanation. What are the questions for it?
        
             
        
        
        
Answer:
B. Endospores are more resistant to dry conditions and are more efficient at producing ATP than vegetative cells. 
D. Endospores are more resistant to dry conditions and are more resistant to environmental toxins than vegetative cells.