The sequence of the one-way gaseous exchange mechanism in a fish is
BIOLOGY
JAMB 2016
The sequence of the one-way gaseous exchange mechanism in a fish is
- A. gills ⇢ operculum ⇢ mouth
- B. mouth ⇢ gills ⇢ operculum
- C. mouth ⇢ operculum ⇢ gills
- D. operculum ⇢ mouth ⇢ gills
Correct Answer: B. mouth ⇢ gills ⇢ operculum
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