The correct answer to this question is "b)That our early ancestors were tailed primates." An elongated tailbone occurs rarely in some newborn children. The presence of a tailbone indicate is that t<span>hat our early ancestors were tailed primates. </span>
        
                    
             
        
        
        
Answer:
i dont understand 
Explanation:
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Answer:
Alimentary tract and accessory organs
Explanation:
Regions of the digestive system can be divided into two main parts: the alimentary tract and accessory organs. The alimentary tract of the digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large intestines, rectum and anus. According to 
Regions of the Digestive System - SEER Training
 
        
             
        
        
        
A. Plants 
They are not an example abiotic factor