Sorry but the only thing i know is the first one which is cell membrane
        
             
        
        
        
Answer:living part of the world
Explanation:
 
        
             
        
        
        
Hey Taonga! Tropism involves an organism (mainly plant) growing toward or away from a stimulus. Taxis involves an organism (protist or animal) moving toward a stimulus.
        
             
        
        
        
If you are talking about Alfred Wegener, then his Hypothesis was Continental Drift, a Theory that suggested that all the continents were once one large supercontinent, named Pangaea, But drifted apart from each other over a long period of time.