How many teeth does a dog have?

Dogs are carnivorous mammals that have a specific number and type of teeth adapted for their diet. An adult dog typically has 42 teeth, which are specialized for cutting, tearing, and grinding food. These teeth include incisors, canines, premolars, and... Read More

1 BIOLOGY MCQS

How many teeth does a dog have?

  • 42
  • 45
  • 46
  • 47
Correct Answer: A. 42

Detailed Explanation

Dogs are carnivorous mammals that have a specific number and type of teeth adapted for their diet. An adult dog typically has 42 teeth, which are specialized for cutting, tearing, and grinding food. These teeth include incisors, canines, premolars, and molars, each serving a unique function.




  • Incisors: Located at the front of the mouth, these small teeth are used for nipping and grooming. Dogs have 12 incisors.




  • Canines: The long, pointed teeth are used to grip and tear meat. Dogs have 4 canines.




  • Premolars: These teeth are used for shearing and slicing food into smaller pieces. Dogs have 16 premolars.




  • Molars: Found at the back of the mouth, these teeth help in crushing and grinding food. Dogs have 10 molars.




Puppies are born without teeth and develop deciduous (milk) teeth by 3–4 weeks of age. Adult dogs replace these with permanent teeth around 6 months old, reaching the full set of 42 teeth.


Other options are incorrect:




  • 45, 46, or 47 are not the standard number of teeth for a dog. A miscount may occur if deciduous teeth or dental anomalies are considered, but the normal adult dog dentition is 42 teeth.




Knowing the number and type of teeth in dogs is important in Biology and veterinary science, as it helps understand feeding habits, oral health, and evolutionary adaptations. Dog dentition reflects their carnivorous nature, with strong canines for hunting and premolars/molars for processing meat. Studying teeth also provides insights into mammalian anatomy and the role of teeth in survival and nutrition.


This knowledge is a part of Biology MCQs in everyday science and is essential for students to understand animal physiology, feeding mechanisms, and dental care in pets.




 

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