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Write down the explanation. Explain why human dentition is considered as thecodont, diphydont and heterodont. - Biology

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प्रश्न

Write down the explanation.

Explain why human dentition is considered as thecodont, diphydont and heterodont.

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उत्तर

  1. Human dentition is described as thecodont, diphyodont and heterodont.
  2. It is called thecodont type because each tooth is fixed in a separate socket present in the jaw bones by gomphosis type of joint.
  3. It is called diphyodont type because we get only two sets of teeth, milk teeth and permanent teeth.
  4. It is called heterodont type because humans have four different type of teeth like incisors, canines, premolars and molars.
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अध्याय 14: Human Nutrition - Exercise [पृष्ठ १७२]

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बालभारती Biology [English] Standard 11 Maharashtra State Board
अध्याय 14 Human Nutrition
Exercise | Q 3. (B) | पृष्ठ १७२

संबंधित प्रश्न

The largest gland in the human body is ______.


What is the location and function of the villi?


Match the items of Column I with suitable items in Column II.

  Column I   Column II
(a) Salivary gland (i) Bile juice secretion
(b) Stomach (ii) Storage of undigested food
(c) Liver (iii) Saliva secretion
(d) Rectum (iv) Acid release
(e) Small intestine (v) Digestion is completed
(f) Large intestine (vi) Absorption of water
    (vii) Release of faeces

What is the other same of food pipe?


What is the name of the opening in the human body though which undigested food is thrown out?


 What is meant by life processes? Name the basic life processes common to all living organisms which are essential for maintaining life.


Define a nutrient. Name four important nutrients present in our food.


Describe one way in which the small intestine is adapted for the absorption of digested food.


Name the hormone that helps in regulating level of sugar in our blood. Name the gland that secrets it.


Why is there no enzyme to digest vitamins?


The stomach secretes gastric juice, which contains hydrochloric acid. What is its function?


Define the following term :

Omnivore


________ is the largest gland in the body.


Name the following

The organ where protein digestion-begins


Name the following

The organ into which the pancreatic juice and the bile juice are poured


State whether the following statement is True or False.

The ducts from the salivary glands open into the duodenum.


Find the odd one out. Give reasons for your choice.


State one difference in nutrition: Parasite and Saprophyte


Correct the spellings: Carboxytipepdase


Correct the spellings: Caceum


Name the enzymes secreted by the following: Pancreas


Give a reason.

Food becomes acidic in the stomach.


Use your brain power!

Why do we sometimes choke suddenly while eating?


Circle the odd one.


Describe the alimentary canal of man


The pyloric sphincter guards the passage between the ____________.


The exit of unabsorbed food material is regulated by ____________.


Mention the 3 important digestive glands in the process of digestion?


Cud is the name given to the food of ruminants which is ______.


What are different types of cells present in the crypts of Lieberkuhn?


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