Answer:
The mass
Explanation:
The gravitational field of an object with mass increases as its mass increases. So, a larger object, like the earth, has a stronger gravitational field than a smaller object, like the moon. 
There are more factors that may play into this however. 
 
        
             
        
        
        
Facilitated diffusion is usually significant to pass the ions across the hydrophobic layer of the plasma membrane. Transmembrane integral protein and careers proteins provide the channels that allow the ion to pass across the membrane.  When an ion bind to their active site on the protein (note that the proteins are very selective), the protein changes conformation. It is this change in conformation opens up the channel that allows the ions to be passed across the membrane. When the ions are released inside of the cell, the protein resumes normal shape (and the channel also closes) and the active site becomes available again or another ion. 
 
        
             
        
        
        
Hypertension or simply termed as high blood pressure is a condition
In the cardiac system where the blood pressure and transfer from one part of
the body to another exceeds the normal levels of the body. The heart is
strongly pumping blood throughout the body which is caused by either lipid
deposits in the vessels or in the heart itself. 
Hence hypertension contributes to the conditions that
already exists such as stress, or existing disorders and worsen it.  
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Answer:
Its either B or D but i think its B
Explanation:
i hope it B if not then its D