Q.

Number of teeth which are replaced in man are –

A. 12
B. 20
C. 32
D. 16
Answer» A. 12
Explanation: Deciduous teeth are the first set of teeth in the growth development of humans and many other mammals. The deciduous teeth are: incisors (4); molars (6); and canine (2). So there are 12 teeth which get replaced by the age of 12 when only permanent teeth remain.
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Biology (GK)

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