Multiple choice

Dolphins have ________.

  1. homodont and indefinite teeth

  2. heterodont and indefinite teeth

  3. homodont and definite teeth

  4. heterodont and definite teeth

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dolphins have homodont dentition (all teeth are similar in shape, conical for catching fish) and their teeth are continuously replaced throughout life (indefinite/polyphyodont). They don't have the differentiated tooth types (heterodont) seen in most mammals.