Answer:
The correct answer is A The student is investigating the passive transport of diffusion.
Explanation:
Diffusion is a type of transport process which helps in the transport of small molecules and gases towards their concentration gradient that"s means from region of high concentration to the low concentration region untill equilibrium is reached.
        In this question the 10 drops are red coloured food particles that are placed into the beaker, diffuses to all the regions of the beaker untill the concentration of that red colored food particle become same in all the regions to which red colored food particle diffuse.
 
        
             
        
        
        
<span>C. Weathering breaks down rock and other material</span>
        
                    
             
        
        
        
 Easy to read
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 Handles large data sets
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Answer:
The cell membrane (also called the phospholipid bilayer or the plasma membrane) is one of the most important structures a cell has. If you think of the cell as a really popular nightclub, the membrane is the bouncer. It decides what enters and exits the cell.
 
        
             
        
        
        
At the base of the food chain