Question

Humans have form of dentition. They also have two sets of teeth in different stages of life and are called .

• A. diphyodont
• B. dentine
• C. heterodont
• D. thecodont
• E. wisdom teeth

Answer 1

Answer: (A), (C)

The correct options are
A diphyodont
C heterodont

'Hetero' means different and 'dont' means teeth. Humans have teeth with different morphology such as incisors, canines, pre-molars and molars and hence, are known as heterodont. Also, humans have two successive sets of teeth in different stages of life- deciduous set and permanent set. That is why, they are called diphyodont.
Thecodont is a morphological arrangement in which the base of the tooth is completely enclosed in a deep socket of bone. Dentine is the bone-like substance beneath the enamel.