ZoologyHow many teeth appear twice in a man?

How many teeth appear twice in a man?

  1. A

    20

  2. B

    12

  3. C

    32

  4. D

    28

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    Solution:

    20 teeth appear twice.

    Human teeth are diphyodont. Milk teeth are 20 and permanent teeth are 32 in number. So, 20 are replaced and 12 appear only once.

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