Answer: exotic
Explanation: exotic can be thought of as “not from here”
 
        
             
        
        
        
I believe it is muscle cells, I'm sorry if this is incorrect.
        
             
        
        
        
Answer:
Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
Explanation: