Answer:
 The slow rate at which diffusion occurs over large distances.
Explanation:
Circulatory system may be defined as one of the most important system of the body that contains arteries and veins. Two main types of circulatory system are open circulatory system and closed circulatory system.
The blood flow all over the body to each cell with the help of the circulatory system. Arteries carry oxygenated blood and veins carry deoxygenated blood in the body. The circulatory system increases the rate of blood flow as diffusion do not allow the transport at long distances.
Thus, the correct answer is option (c).
 
        
             
        
        
        
A true experiment<span> is a type of </span>experimental design<span> and is used to establish cause and effect relationships</span>
        
                    
             
        
        
        
Do they have a picture for this question since you said "Shows"?
 
        
             
        
        
        
The action that BEST demonstrates the transformation of mechanical energy to heat energy is burning a candle (Option B).
Mechanical energy refers to the energy contained by an object due to its motion and/or position. Heat energy refers to the energy caused by the movement of atoms and/or molecules.
Energy transformation refers to the process by which the energy of an object changes from one type to another.
Mechanical energy can be converted into heat energy and vice-versa.
For example, thermal (heat) energy can be used to generate mechanical energy that produces the movement of a turbine generator, which subsequently converts mechanical energy into electrical energy.
Learn more in:
brainly.com/question/10555430?referrer=searchResults
 
        
             
        
        
        
A I think that is how lightning works anyways