The answer is : linea aspera
        
                    
             
        
        
        
D is the answer. A gene is a part of a chromosome.
        
             
        
        
        
D)	Thorns are an adaptation that some plants have evolved in order to discourage herbivores from eating the plant.	
 
        
                    
             
        
        
        
<span>The statement that is least likely to support the endosymbiotic theory is that mitochondria and chloroplasts have DNA that resembles bacterial DNA.
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