A

Admin • 802.91K Points
Coach

Q. Operculum is present in

  • (A) birds
  • (B) sea fish
  • (C) cartilaginous fish
  • (D) none of these
  • Correct Answer - Option(B)
  • Views: 2
  • Filed under category Biology
  • Hashtags:
Explanation by: Admin

Operculum is a bony flap that covers and protects the gills in bony fish (Osteichthyes), including most sea fish. It helps in respiration by allowing water to flow over the gills.

Why not the others?

  • (A) Birds – Birds do not have gills or operculum; they have lungs for respiration.
  • (C) Cartilaginous fish – Sharks and rays (cartilaginous fish) lack an operculum. Instead, they have gill slits for respiration.
  • (D) None of these – Incorrect, as operculum is present in bony fish.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.