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Question #45581
The Question
A nation achieves significant public health success, leading to a drastic decline in the death rate and an increase in life expectancy. However, due to intense resource competition, the total fertility rate drops significantly below the replacement level. Which of the following statements regarding the future demographic profile of this population is INCORRECT?
Options
- A.
The age pyramid will eventually transition into an urn shape, indicating a declining population.
- B.
The proportion of individuals in the post-reproductive age group will become disproportionately large compared to the pre-reproductive group.
- C.
The population will stabilize exactly at its carrying capacity (K) due to the compensatory effect of increased life expectancy.
- D.
The primary public health focus will shift from controlling infectious diseases to managing degenerative and age-related disorders.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Comparative_Analysis
Sharpen your ability to evaluate multiple scenarios and distinguish between competing potential answers.
Concepts Behind This Question
Age_Pyramids|Population_Growth_Model_Dynamics|Public_Health_Indicators
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Students often confuse the effects of 'increased life expectancy' and 'resource competition' with logistic growth stabilization at carrying capacity (K).
The critical nuance is that stabilization requires zero population growth (replacement level fertility).
When fertility drops below replacement level, the population does not plateau at K; it enters a negative growth phase, shifting the age pyramid from bell-shaped to urn-shaped.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Reproductive Health - Class 12 |
| Concept | Public Health Indicators |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |