I'm not sure what you mean by this but here is a diagram of a nephron!! Hope this helps?
C. <span>The duodenum is a separate anatomic structure. It is the first part of the small intestine after the stomach. </span>
Made of cells
<span>use of energy </span>
<span>growth </span>
<span>respond to stimuli </span>
<span>exchange of gasses </span>
<span>excretion </span>
<span>limited life span</span>
