Answer:
A Y-chromosome
Explanation:
Males have one X and one Y chromosome
 
        
             
        
        
        
Carbon is transfered by plants and animals.
 
        
             
        
        
        
...to go from mouth to anus varies from 24 to 72 hours. 
 
        
                    
             
        
        
        
The greenhouse effect.
Hope this helps!
-Payshence xoxo
        
             
        
        
        
Answer:
They form crystals
They have high melting points and high boiling points
They have higher enthalpies of fusion and vaporization than molecular compounds
They're hard and brittle
They conduct electricity when they are dissolved in water
They're good insulators
Explanation:
i hope this is what you need