Assume the larger circle shown below is the Sun, and the smaller circle is the head of a comet. If the comet is moving AWAY from the Sun, draw and label the two tails onto the comet. 
Definitions:
Middle Portion
The central segment or part of an object, area, or concept.
Renin
A hormone secreted by the kidney that helps to regulate blood pressure.
Blood Pressure
A measure of the force that circulating blood exerts against the walls of the arteries.
Renal Cortex
The outer portion of the kidney, containing the nephrons' filtering structures, involved in urine production and blood filtration.
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