The sequence of the one-way gaseous exchange mechanism in a fish is

The sequence of the one-way gaseous exchange mechanism in a fish is
  • A.
    operculum → gills → mouth
  • B.
    gills → operculum → mouth
  • C.
    mouth → operculum → gils
  • D.
    mouth → gills → operculum
Correct Answer: Option D
Explanation
You May Also Like