Multiple choice

Dolphins have

  1. homodont and indefinite teeth

  2. hetrodont and definite teeth

  3. homodont and definite teeth

  4. hetrodont and indefinite teeth
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A Correct answer
Explanation

Dolphins have homodont dentition (all teeth are similar in shape, conical for catching fish) and polyphyodont/indeterminate replacement (continuous tooth replacement throughout life). 'Heterodont' refers to having different tooth types like incisors, canines, and molars, which dolphins do not have. 'Definite' teeth would mean a fixed number, which is not true for dolphins.

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