Because those are traces of life meaning that there was life living there once, that life wouldn't have been able to survive there with how Antarctica is now.
        
             
        
        
        
Answer:
c
Explanation:
because the solid ice will sublime into gas
 
        
             
        
        
        
Answer:
Lemur
Explanation:
It is the lemur, because 4/5 DNA sequences differ from the gorilla!!
 
        
                    
             
        
        
        
Insulin receptors regulate glucose level in blood. without that, glucose level would be uncontrolled/not normal (high/low) and it would be impossible to maintain homeostasis (stability) :P hope it will help.. :))