Answer:
I believe the Golgi apparatus or endoplasmic reticulum
Explanation:
 
        
                    
             
        
        
        
Answer:
The options are :
The spaces get wider because the concrete sections shrink.
The spaces stay the same because the concrete sections does not shrink or expand.
The spaces get narrower because the concrete sections expand.
Some spaces get wider, some spaces get narrower, and some spaces stay the same because each concrete section behaves differently on a hot summer day.
The answer is 
Some spaces get wider, some spaces get narrower, and some spaces stay the same because each concrete section behaves differently on a hot summer day.
Concrete surfaces react with a change in temperature by either shrinking or expanding depending on the temperature difference.
When there is an increase in temperature it expands a bit and shrinks a bit too when the temperature is decreased.
 
        
             
        
        
        
Provide structure and support, facilitate growth through mitosis. allow passive and active transport, produce energy, create metabolic reactions, aids in reproductive.