a
mouth --> operculum -> gills
b
mouth -> gills > operculum
c
operculum > gills -> mouth
d
gills -> operculum --> mouth
Explanation
Correct Option
bVideo Explanation
Post your Contribution
Share:
Discussions (4)

Zaddyyinka
2 months ago
I think A is the correct answer is as the operculum being the gill chamber. So the flow gets to it before reaching the gill

