alleryHow many pairs of gills, each side covered by an operculum, do bony fishes have?
ATwo pairs
BThree pairs
CFour pairs
DSix pairs
Answer & Solution
Correct answer: C. Four pairs
Osteichthyes have four pairs of gills covered by an operculum on each side.
Keep practising Animal Kingdom
Browse all Animal Kingdom questions for NEET UG, or explore more Biology topics.
Related questions
Molecular phylogenetics groups hagfish and lampreys in which clade?As deuterostomes, chordate embryos form which opening first?The chordate endostyle, which stores iodine, may be a precursor of the?In cartilaginous fishes, where is the mouth located?How many chambers does the heart of a shark have?The vertebrate superclass Tetrapoda is characterised by?Air sacs connected to the lungs supplement breathing in?Bird skin is dry and glandless except for the?