In the vacuum of space there is no molecules. Sound waves get to your ears by bouncing off of molecules in the air. No molecules in space's vacuum means sound waves have nothing to bounce of off so they can not reach our ears meaning we hear no sound.
        
             
        
        
        
Answer:
Possession of inherited adaptations that maximize fitness. 
Explanation:
Basically ones that are best adapted for their environment. (I'm assuming "he" is Darwin?)
 
        
             
        
        
        
Yes that statement is true
        
             
        
        
        
epididymis-vas deferens-urethra
 
        
             
        
        
        
Global warming, increase in co2 which melts land ice