Answer is thorax...
Hope it helps you...
        
             
        
        
        
Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades, or even millions of years after a mass extinction
        
             
        
        
        
Answer:
C. The evolution of many species from a single ancestor over a long period of time 
 
        
             
        
        
        
Answer:
Ten arms! Hope this helps!