Class 12 · Organisms and Populations

Emigration: Population Outflow — NEET Biology

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📖 NCERT Source

Emigration is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration.

🖼️Related NCERT figure: A flow diagram showing factors affecting population density. Central box labeled 'Population Density (N)' with four connected boxes: 'Immigration (I)' at top with '+' sign, 'Natality (B)' at left with '+' sign, 'Mortality (D)' at right with '-' sign, and 'Emigration (E)' at bottom with '-' sign. (Figure 11.2)
NCERT Biology · Class 12 · Chapter 11 · Paragraph 17
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QuestionPractice Question

Match the following population attributes with their correct definitions: Column I A. Immigration B. Population density C. Mortality D. Natality E. Emigration Column II 1. Number of births during a given period, added to initial density 2. Size of a population in a unit space at a given time 3. Number of individuals leaving the habitat and moving elsewhere 4. Number of deaths in the population during a given period 5. Number of individuals entering a habitat from elsewhere

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