Answer: Differentiation allowed the brain and kidney cells to become specialized for the structures and functions they possess. 
Explanation:
 
        
             
        
        
        
Cellular respiration happens in all eukaryotic cells and it occurs in the mitochondria, the powerhouse of the cell. cell resp breaks up glucose in order to create more ATP for the cell. the products that go IN are GLUCOSE and OXYGEN. the products that come OUT are CARBON DIOXIDE, WATER, and of course, ENERGY.
        
             
        
        
        
<span>it is Method for determining Absolute Age</span>
        
                    
             
        
        
        
The correct answer is option a. true.
The fossil fuels, including coal and oil are present very deep inside the earth. In the carbon cycle, only fixation of atmospheric carbon dioxide in the organic material takes place. This cycle does not involve the recycling of the fossil fuels. 
The burning of the fossil fuels directly release carbon dioxide and other carbon compound in the atmosphere, which was not involved in the cycle when it was present deep beneath the earth and ocean. Hence, the burning of fossil fuels increases the amount of carbon in the carbon cycle. 
 
        
                    
             
        
        
        
First box is where the Sun's energy is produced.  The second box is hot gases move up and cool gases sink down.  Then Region of the Sun that is visible from Earth. Last is appears as a red ring around the Sun right before and after the peak of a total solar eclipse.  I hope this helps!