for cutting like plants 7e7e6rd
 
        
             
        
        
        
I think it is called mechanical digestion.  Or alas, chemical digestion.  One of those.  Or both!
Hope helps-aparri
(thank yous are welcome)
        
             
        
        
        
A small flowerless green plant with leaflike stems or lobed leaves, occurring in moist habitats. Liverworts lack true roots and reproduce by means of spores released from capsules.