Explain the term thecodont and diphyodont.
hecodont is a type of dentition in which the teeth are embedded in the deep sockets of the jaw bone. Ankylosis is absent and the roots are cylindrical.
Examples include living crocodilians and mammals.
Diphyodont is a type of dentition in which two successive sets of teeth are developed during the lifetime of the organism. The first set of teeth is deciduous and the other set is permanent.
The deciduous set of teeth is replaced by the permanent adult teeth.
This type of dentition can be seen in humans.
Popular Questions of Class 11 Biology
- Q:- Describe briefly the four major groups of Protozoa.
- Q:- Why are living organisms classified?
- Q:- State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria
- Q:- What is the difference between direct and indirect development?
- Q:-
Define a taxon. Give some examples of taxa at different hierarchical levels.
- Q:- Describe the important properties of enzymes.
- Q:-
What are the steps involved in formation of a root nodule?
- Q:- How is a key helpful in the identification and classification of an organism?
- Q:- Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.
- Q:- What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
Recently Viewed Questions of Class 11 Biology
- Q:- By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain.
- Q:- Describe briefly:
(a) Arithmetic growth
(b) Geometric growth
(c) Sigmoid growth curve
(d) Absolute and relative growth rates - Q:-
What are the steps involved in formation of a root nodule?
- Q:- How is a key helpful in the identification and classification of an organism?
- Q:- Describe the important properties of enzymes.
- Q:- Write short notes on the following:
(a) Neural coordination
(b) Forebrain
(c) Midbrain
(d) Hindbrain
(e) Retina
(f) Ear ossicles
(g) Cochlea
(h) Organ of Corti
(i) Synapse - Q:- Briefly describe water potential. What are the factors affecting it?
- Q:-
What are the characteristics of prokaryotic cells?
- Q:- What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
- Q:- What is the difference between direct and indirect development?
3 Comment(s) on this Question
Best answer for a student.
Thecodont
I like this answer too much.
- NCERT Chapter