The correct answer is:      They lean towards the light 
        
                    
             
        
        
        
The function of the somatic nervous system includes all nerves controlling the muscular system and external sensory receptors.
        
                    
             
        
        
        
False, because a niche is how one animal uses its habitat- many animals use many different niches
        
             
        
        
        
Answer: no body cavity—acoelomates; body cavity not completely lined with mesoderm—pseudocoelomates; body cavity completely lined with mesoderm—coelomates