The concentration at which all of the carriers in renal tubules ...

[JGIBBSON]

The concentration at which all of the carriers in renal tubules for a given substance are saturated is the
 A) tubular maximum.
  B) hydrostatic threshold.
  C) blood colloid maximum.
  D) osmotic pressure.
  E) renal threshold.

Question 2

The coronary sulcus is a groove that
 A) marks the border between the atria and ventricles.
  B) marks the boundary line between the right and left ventricles.
  C) marks the boundary line between the right and left atria.
  D) separates the atrioventricular valves from the atria.
  E) separates the coronary arteries from the coronary veins.

[HandsomeMarc]

Answer to Question 1

A

Answer to Question 2

A

[JGIBBSON]

Thanks for the timely response, appreciate it

[amandanbreshears]

Gracias!