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HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Important Questions

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What is vaccine?

Appears in 2 question papers
Chapter: [10] Human Health and Diseases
Concept: Vaccination and Immunization

Enlist the four types of T- lymphocytes, responsible for immune response of our body.

Appears in 2 question papers
Chapter: [10] Human Health and Diseases
Concept: Immunity

Enlist any two features of Acquired immunity.

Appears in 2 question papers
Chapter: [10] Human Health and Diseases
Concept: Immunity

Enlist the advantages of biogas.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes in Energy Generation

Which are the bacteria responsible for converting organic acids into methane?

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes in Energy Generation

Give economic importance of apiculture

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Animal Husbandry (Livestock)

Explain the process of sewage water treatment before it can be discharged into natural water bodies.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes in Sewage Treatment

What is a heterocyst?

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes as Biofertilizers

What is emasculation?

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Plant Breeding

Name any two edible mushrooms.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes in Human Welfare

Give the economic importance of lac.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Animal Husbandry (Livestock)

Define Osmotic pressure.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Plant Breeding

Write chemical reactions to represent Methanogenesis.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes in Energy Generation

State any three benefits of mycorrhiza.

Appears in 2 question papers
Chapter: [11] Enhancement of Food Production
Concept: Microbes as Biofertilizers

What is the role of Taq-polymerase in PCR technology?

Appears in 2 question papers
Chapter: [12] Biotechnology
Concept: Principles of Processes of Biotechnology

Define Niche. 

Appears in 2 question papers
Chapter: [13] Organisms and Populations
Concept: Population Interactions

What is leaching?

Appears in 2 question papers
Chapter: [14] Ecosystems and Energy Flow
Concept: Concept of Ecosystem >> Decomposition

Lichens taking roots on bare rocks are an example of ______.

Appears in 2 question papers
Chapter: [14] Ecosystems and Energy Flow
Concept: Biotic or Ecological Succession

What are ‘pioneer species’? Give two examples of them.

Appears in 2 question papers
Chapter: [14] Ecosystems and Energy Flow
Concept: Biotic or Ecological Succession

Explain the following sequence of succession after a forest fire.

Appears in 2 question papers
Chapter: [14] Ecosystems and Energy Flow
Concept: Biotic or Ecological Succession
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