The ability to form concentrated urine depends on the functions ...

[mcmcdaniel]

The ability to form concentrated urine depends on the functions of the
 A) proximal convoluted tubule.
  B) distal convoluted tubule.
  C) collecting duct.
  D) nephron loop (loop of Henle).
  E) nephron loop, distal convoluted tubule and the collecting duct.

Question 2

Coronary veins empty into the
 A) left atrium.
  B) left ventricle.
  C) right atrium.
  D) right ventricle.
  E) conus arteriosus.

[reelove4eva]

Answer to Question 1

E

Answer to Question 2

C

[mcmcdaniel]

TYSM

[jamesnevil303]

Great answer, keep it coming