Question:
In mammals, dentition is
In mammals, dentition is
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Mammals = thecodont + heterodont + diphyodont.
Updated On: Jul 18, 2026
- Acrodont and homodont
- Homodont and thecodont
- Acrodont and heterodont
- Thecodont, heterodont and diphyodont
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The Correct Option is D
Solution and Explanation
Step 1: Understanding mammalian dentition.
Dentition refers to arrangement, type, and replacement of teeth in organisms. Mammals show highly specialized dentition adapted for different functions like cutting, tearing, and grinding.
Step 2: Thecodont condition.
In mammals, teeth are embedded in deep sockets of jaw bones called alveoli. This condition is known as thecodont dentition, providing strong anchorage.
Step 3: Heterodont condition.
Mammals possess different types of teeth such as incisors, canines, premolars, and molars. This variation is called heterodont dentition and helps in diverse feeding habits.
Step 4: Diphyodont nature.
Mammals have two sets of teeth during their lifetime: milk teeth and permanent teeth. This condition is called diphyodont dentition.
Step 5: Evaluation of other options.
Acrodont and homodont conditions are seen in lower vertebrates, not mammals. Hence those options are incorrect.
Step 6: Final conclusion.
Thus, mammals show thecodont, heterodont, and diphyodont dentition.
Dentition refers to arrangement, type, and replacement of teeth in organisms. Mammals show highly specialized dentition adapted for different functions like cutting, tearing, and grinding.
Step 2: Thecodont condition.
In mammals, teeth are embedded in deep sockets of jaw bones called alveoli. This condition is known as thecodont dentition, providing strong anchorage.
Step 3: Heterodont condition.
Mammals possess different types of teeth such as incisors, canines, premolars, and molars. This variation is called heterodont dentition and helps in diverse feeding habits.
Step 4: Diphyodont nature.
Mammals have two sets of teeth during their lifetime: milk teeth and permanent teeth. This condition is called diphyodont dentition.
Step 5: Evaluation of other options.
Acrodont and homodont conditions are seen in lower vertebrates, not mammals. Hence those options are incorrect.
Step 6: Final conclusion.
Thus, mammals show thecodont, heterodont, and diphyodont dentition.
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