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

BIOLOGY
JAMB 2021

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

  • A. mouth --> operculum -> gills
  • B. mouth -> gills > operculum
  • C. operculum > gills -> mouth
  • D. gills -> operculum --> mouth

Correct Answer: B. mouth -> gills > operculum



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