D. regulates which materials enter and leave the cell
I guess the stomach is held in place by a variety of Muscle cells, Epithelial cells, and connecting tissues; so the answer is: all of the above.
<h3>Hurry please help How does filtration occur during the formation of urine?</h3>
Answer : A.) Pressure causes water and dissolved substances to filter through capillary walls of the glomerulus.
Hope this helps!
Stressor due it comes from an external condition or event.