Their valency is one and both belong to the third period
        
             
        
        
        
Indigestable food moves from the small intestine to the large intestine where water is absorbed back into the body. The waste is then passed through the rectum and excreted from the anus. 
I would say the large intestine.
        
             
        
        
        
Answer:
primary succession takes longer 
Explanation: 
Primary succession is built from the ground up, whereas secondary succession is built from an already existing civilization.
 
        
             
        
        
        
Explanation:
Phytoanticipins are defined as defense compounds which are constitutively present, i.e., regardless of the presence of pests or diseases.