To study human dentition biology practical class 11 experiment 9 part b answers
Class 11
Biology practical
Part -A
9. To study human dentition
Answers
By: solutions made easy
Observations:
1 ) Human dentition is heterodont i . e . shows 4 different types of teeth viz incisors , canines , premolars and molars .
( 2 ) A human adult has a dental formula
2 : 1 : 2 : 3 .
( 3 ) The total number of teeth in an adult human are 32 .
( 4 ) The teeth help in mastication of food and mixing it with saliva .
( 5 ) Each tooth is made up of root and crown . The crown is covered with an enamel .
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