Write down the human dental formula. What is meant by diphydont dentition ?
Human dental formula for one side of buccal
Diphydont dentition : It is the dentition having two sets of teeth, first set is of milk teeth which are replaced by the second set of permanent teeth.
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Distinguish between autotrophic and heterotrophic nutrition.
Write a note on saliva.
Name the cell that secretes mucus. What are the functions of mucus ?
