Bulk of the tooth in mammals is made up of

What are digestive organs? Describe the various parts of the human digestive system.

Which of the following papillae are without taste buds in human tongue?

Human teeth are:
$(1)$ Of different types.
$(2)$ Embedded in a socket of the jaw bone.
$(3)$ Formed in two sets during their life.
This type of dentition is called:

In humans,the ...... is a blind sac which hosts some symbiotic microorganisms.

Choose the incorrect sentence.