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HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Biology

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Biology
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Write drawbacks of Darwin's theory

[5] Origin and Evolution of Life
Chapter: [5] Origin and Evolution of Life
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Distinguish between directional, stabilizing and disruptive selection.

[5] Origin and Evolution of Life
Chapter: [5] Origin and Evolution of Life
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The example of environmental plasticity-heterophylly observed is______.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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What is arbour vitae?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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How many spinal nerves are there, and to which groups they belong?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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The term 'Terror of Bengal' is used for______.

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
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Give the definition of Cyclosis.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Distinguish between Vasa efferentia and Vasa deferentia.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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For treatment of e-waste, which is the most suitable solution?

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
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What is Texmati?

[12] Biotechnology
Chapter: [12] Biotechnology
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Complete the following table:

No. Name of Nerve Type of Nerve Function
1. Optic    
2. Facial    
3. Hypoglossal    
4. Trigeminal    
5. Auditory    
6. Glossopharyngeal    
[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Deposition of fatty substances in the lining of arteries results in ____________.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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A fine powder of recycled modified plastic is known as ______.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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With the help of a neat, labelled diagram describe the human male reproductive system.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Describe the human male reproductive system.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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____________ contribute about 60% of the total volume of the semen.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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The external layer of connective tissue sheath of human testis is __________.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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Pituitary dwarfism is treated with gene therapy by____

(A) Human insulin
(B) Tissue growth factor - Beta
(C) Tissue plasmogen activator
(D) Human growth hormone producer gene

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
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What is the full form of IVF?

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Describe the T.S. of human testis

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined
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