Answer:
As a cell grows bigger, its internal volume enlarges and the cell membrane expands. Unfortunately, the volume increases more rapidly than does the surface area, and so the relative amount of surface area available to pass materials to a unit volume of the cell steadily decreases.
 
        
                    
             
        
        
        
Answer:
"Overfishing and pollution have been blamed for the clam shortage, and scientists believe the harvest must be limited before the stock becomes exhausted."
Explanation:
Hope this helps C:
~Chiena
 
        
             
        
        
        
Over the past four decades, researchers have identified many types of oncogenes, including growth factor receptors, transcription factors, and intracellular signaling proteins.
<h3>What are oncogenes?</h3>
These are specific genes in an organism that can cause the formation of cancer. These genes are prone to defects that when activate, signal for a cell to become a tumor. The genes listed in the question are some examples of the types of cells that can be oncogenes. 
Therefore, we can confirm that over the past four decades, researchers have identified many types of oncogenes, including growth factor receptors, transcription factors, and intracellular signaling proteins.
To learn more about oncogenes visit: 
brainly.com/question/7310602?referrer=searchResults
 
        
             
        
        
        
The neurons conduct impulses over relatively long distance in the body. This is facilitated by their long cytoplasmic extensions
 
        
             
        
        
        
the branch of science concerned with the chemical and physicochemical processes and substances that occur within living organisms.