Answer:
The renal capsule.
Explanation:
The innermost region or layer is the renal capsule.
When taken out of the freezer and placed on a piece of foil, 2 pieces of ice will melt at the same rate because the piece of foil is at room temperature and so are the pieces of ice.
That's the best way that I can explain it :)
D- skin appears blue because of a lack of oxygen in the blood