Answer:
one motor neuron
Explanation:
Although a single motor neuron can innervate several muscle fibers, each muscle fiber is innervated by only one motor neuron
 
        
             
        
        
        
Answer:
1. physical and chemical barriers
2.non-specific innate response
3. specific adaptive responses
Explanation:
 
        
             
        
        
        
The answer you are looking for is: 
D.) Eukaryote 
Hope that helps!! 
Have a wonderful day!!
        
                    
             
        
        
        
Answer:The answer is Desert
Explanation:The dead giveaway is thick skin to prevent water loss and burrow to escape the heat.