Multiple choice

In a ______, the mouth is ventral.

  1. bony fish

  2. cartilaginous fish

  3. jawless fish

  4. ray fish
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In cartilaginous fish (Chondrichthyes like sharks and rays), the mouth is positioned ventrally on the underside of the head. This is a key anatomical difference from bony fish (Osteichthyes), which typically have terminal mouths at the anterior end. Jawless fish and ray fish are not the correct classification for this characteristic.

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