The process of microsporogenesis
 
        
             
        
        
        
Answer:
Nitrogen fixation (N2 to NH3/ NH4+ or NO3-)
Nitrification (NH3 to NO3-)
Assimilation (Incorporation of NH3 and NO3- into biological tissues)
Ammonification (organic nitrogen compounds to NH3)
Denitrification(NO3- to N2)
Explanation:
 
        
             
        
        
        
Intercalated disks are unique to cardiac muscles.