TLS Online TPP Program

#Question id: 11666


The osmoregulatory process called secretion refers to the ________.

#SCPH28 | Zoology
  1. reabsorption of nutrients from a filtrate
  2. selective elimination of excess ions and toxins from body fluids
  3. formation of an osmotic gradient along an excretory structure
  4. expulsion of urine from the body