Diffusion? are you asking what its called?
Answer:
Outer cortex, Middle Medulla, and Renal Pelvis.
They all have a lot of Blood vessels(something they share in common).
Explanation:
The kidney is made up with three regions; the outer cortex, the middle medulla (with the renal pyramids) and the inner-most renal pelvis.
This hydrocarbon because it possess at least 1 double bond it would be an Alkene. Alkenes possess at least 1 carbon carbon double bond. It is an example of an unsaturated hydrocarbon.
