Topic Details (Notes format)

Organisms and Populations

Subject: General Science

Book: NCERT Biology Class 12

Study of the interaction between organisms and their environment.
- **Population Ecology**:
- Birth rate, death rate, immigration, emigration.
- **Adaptations**:
- Structural, physiological, and behavioral.
- **Species Interactions**:
- Mutualism, commensalism, predation.

**Possible Exam Questions:**
1. Define population density and its significance.
2. Explain the concept of mutualism with examples.
3. How do organisms adapt to their environment?
4. What is the role of immigration and emigration in population dynamics?
5. Describe the predator-prey relationship with examples.

Practice Questions

Which organelle is responsible for photosynthesis in plants?

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What is the chemical formula of sulfuric acid?

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What is the unit of electric current?

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What is the term for water changing from liquid to gas?

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Which element is the most abundant in the Earth’s crust?

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Which part of the cell is responsible for energy production?

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What is the chemical formula for carbon dioxide?

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Which part of the cell contains the genetic material?

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Which part of the brain is responsible for balance and coordination?

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What type of electromagnetic radiation has the longest wavelength?

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