[Campbell Biology P.1035] What are the functional units of the vertebrate kidney, and what is... | Practice Question

What are the functional units of the vertebrate kidney, and what is the approximate percentage of the type that reaches only a short distance into the medulla in humans?

  • A: Renal pelves; 15%
  • B: Ureters; 85%
  • C: Nephrons; 85%
  • D: Renal cortices; 15%

Explanation

The text states that 'nephrons' are the functional units of the vertebrate kidney. It also mentions that '85% are cortical nephrons, which reach only a short distance into the medulla.' Therefore, 'Nephrons; 85%' is the correct answer.