The Gallbladder stores bile that is produced in the liver
I am generally confused as to of what you are asking. Can you post something so i can see what you need? I just am confused.
Answer:
The villi in the small intestine provide a large surface area with an extensive network of blood capillaries. This makes the villi well adapted to absorb the products of digestion by diffusion and active transport.
Explanation:
Gravitational is only attracted and electromagnetic is both atrractive and repulsive since it depends what you are talking about