Organisms and Populations Definition, Types, Examples & Uses

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.