It gets passed onto the baby
        
                    
             
        
        
        
If those are the only answers i would say mutualism
 
        
                    
             
        
        
        
Codón o condón por que la información que yo tengo es de CONDON
 
        
             
        
        
        
Correct answer: D) From bacteria living in their roots 
Nitrogen is an essential plant nutrients, but it is metabolically unavailable to higher plants and animals. It is available to some species of microorganism by biological nitrogen fixation in which nitrogen is converted to ammonia with the help of enzyme dinitrogenase.
The process of breaking apart the two atoms in a nitrogen molecule is called nitrogen fixation. Plant obtain the nitrogen they need from the soil which is already fixed by the bacteria and archae.
Example: <em>Azobacter</em><em>,</em> Nostac    
 
        
             
        
        
        
B. tears , this is not a first line of defense