Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus.
 
        
                    
             
        
        
        
D because no human has the ability to make their own food within themselves.
        
             
        
        
        
Answer:
x= 0, y = 2
Explanation:
4x + 5y +2 = 12
Let's suppose that 
x = 0
y = 2
By putting the values of x and y
4(0) + 5( 2) + 2  = 12
0 + 10 + 2 = 12
12 = 12
Hence, it is proved that x = 0 and y = 2
 
        
             
        
        
        
Answer:
the process of metabolism works to make it possible, when its seems liie being impossible.. so?