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The Question Has Four Options. Choose the Correct Answer: the Hardest Constituent of Tooth is - Biology

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प्रश्न

The question has four options. Choose the correct answer:

The hardest constituent of the tooth is

पर्याय

  • bone

  • dentine

  • enamel

  • pulp

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उत्तर

Enamel

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Digestive System - Exercise [पृष्ठ १५१]

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फ्रँक Biology Part 1 [English] Class 9 ICSE
पाठ 16 Digestive System
Exercise | Q 20.14 | पृष्ठ १५१

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

List in tabular form two differences between pepsin and trypsin. 


What is the function of rectum?


Study the following dental formula and then answer the question that follow:

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State the total number of teeth present in the dentition. 


Write True or False in the following statement

Molars help in cutting and tearing food.


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The ______ and ______  are used for crushing and grinding the food.


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Saliva contains salivary amylase which changes starch to _____.


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______ and ______ help in digestion but food does not pass through them.


Write true or false for the below statement. Rewrite the false statements correctly.

Water is absorbed in large intestine


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Answer in detail.
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Which option represents the CORRECT sequence of digestive organs between the mouth and the anus?


What is digestion?


Solve the crossword given as Figure.

Across Down
1. Cream-coloured digestive gland 2. Feeds with the help of pseudopodia
3. Undigested excretory solid residues 6. Total number of molars in one jaw of an adult
4. Organ that mixes saliva with the food 8. Largest gland
5. Point of defecation 9. Watery secretion in the mouth
7. Stored in gall bladder 11. A ruminant
10. Finger-like outgrowth in the small intestine 12. Form of food chewed by ruminants
13. Kind of taste buds    
14. Kills bacteria in the stomach    

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