Grade 12 Zoology 2071 Pastpaper

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Zoology

Grade 12 , 2071

Regular Examination Paper

Full Marks : 75
Pass Marks : 13.5
Time : 1hr 30min
Q.NO. 1 (e)

Name the fluid in which the membranous labyrinth floats.

[Marks : 1 ] Show Ans
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Q.NO. 1 (h)

Name three auditory ossicles.

[Marks : 1 ] Show Ans
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Q.NO. 1 (j)

What is integrated fish farming?

[Marks : 3 ] Show Ans
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Q.NO. 2 (b)

How is notochord formed in embryo of frog?

[Marks : 3 ] Show Ans
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Q.NO. 2' (b)

Explain the process of neurulation.

[Marks : 3 ] Show Ans
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Q.NO. 2 (e)

Discuss on problems of over human population.

[Marks : 3 ] Show Ans
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Q.NO. 2 (g)

The trends of human population growth

[Marks : 3 ] Show Ans
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Q.NO. 3

Discuss about the human population growth , problems of over population and control strategies.

 

 

[Marks : 7.5 ] Show Ans
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Set B Q.NO. 1 (e)

Name the causative agent of typhoid.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (a)

Name the tissue whose cells divide throughout the life.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (d)

What is chloride shift?

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (f)

What are pullets?

[Marks : 3 ] Show Ans
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Set C Q.NO. 1 (f)

Which pigment enables us to see in dark?

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (g)

Who extracted penicillin for the first time?

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (h)

Define the term immunity.

[Marks : 1 ] Show Ans
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Set C Q.NO. 1 (i)

What do you mean by extensive fish farming?

[Marks : 1 ] Show Ans
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Set C Q.NO. 2 (a)

Mention the types of and functions of connective tissue.

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (c)

Write the effects of hypothyroidism.

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (d)

Discuss different diseases caused by malnutrition.

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (e)

Describe   kidney as a homeostatic organ.

[Marks : 3 ] Show Ans
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Set C Q.NO. 2 (f)

Give the symptoms and control methods of tuberculosis.

[Marks : 3 ] Show Ans
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Set C Q.NO. 3 (or)

Describe male reproductive system of human being.            

[Marks : 7.5 ] Show Ans
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Set C Q.NO. 4

Given the structure and working mechanism of human heart.

[Marks : 8 ] Show Ans
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Set D Q.NO. 1 (a)

Where does the mast cell located?

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (c)

Mention   any two enzymes for protein digestion.

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (f)

Differentiate between autograft and heterograft.

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (g)

What is the role of surrogate mother?

[Marks : 1 ] Show Ans
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Set D Q.NO. 1 (i)

Give the cause of myopia.

[Marks : 1 ] Show Ans
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Set D Q.NO. 2 (a)

Describe the structure of areolar tissue.

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (d)

Draw a well labelled diagram of internal   structure of kidney.

[Marks : 3 ] Show Ans
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Set D Q.NO. 2 (f)
Define amniocentesis; mention its merits and demerits too.
[Marks : 1 ] Show Ans
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Set D Q.NO. 2 (g)

Write notes on hepatitis B.

[Marks : 3 ] Show Ans
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Set D Q.NO. 3 (or)

Describe the structure and functions of brain.

[Marks : 7.5 ] Show Ans
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Set D Q.NO. 4

What are communicable diseases? Describe the causative agents, symptoms, effects and control measures of any one communicable disease you have studied.  

[Marks : 8 ] Show Ans
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