Sam and Jenny ride their bikes at a constant velocity of 3 miles per hour.
Explanation:
Here we see that both of them are moving at a constant velocity which means their speed is constant and they are moving in a straight line. 
Zero acceleration is implied on the bikes and the net force is BALANCED.
When forces are in balance, acceleration is zero. Velocity is constant and there is no net or unbalanced force.
 
        
             
        
        
        
I can't draw very well. but, essentially the shape of DNA is a double helix and A pairs with T and T pairs with A. C pairs with G and G pairs with C. No matter what in DNA. What one side has the other side has. The other will always have the match to it on the other side
A= adenine
T=thymine
C=Cytosine
G=guanine
 
        
        
        
Dry climates do not have sufficient precipitation during the most of the year. 
Desert are located in the arid climate. 
The semiarid climate is in a grassland, or steppe, region. 
 
        
             
        
        
        
Answer:
I am leaning towards D because everything changes during Cell differentiation the functions changes and goes through many different cycles.
Explanation:
 
        
             
        
        
        
Answer:
The molecules in a solid are more closely packed than those in a gas. Gas molecules are VERY spread apart, which is why we cannot see them.
Explanation: