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Bald Eagle had been at high risk of exti...

Bald Eagle had been at high risk of extinction due to its

A

Large size

B

Low reproductive potential

C

High trophic level

D

Change in migratory route.

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Bald Eagle**: The Bald Eagle is a bird of prey found in North America, known for its distinctive white head and tail. It is a top predator and is often associated with strength and freedom. 2. **Identifying the Risk of Extinction**: The question states that the Bald Eagle is at high risk of extinction. This means that the population of Bald Eagles has significantly decreased and they are facing threats that could lead to their complete disappearance. 3. **Analyzing the Options**: The options provided are: - Option 1: Large size - Option 2: Low reproductive potential - Option 3: High trophic level - Option 4: Change in migratory route 4. **Understanding Trophic Levels**: Trophic levels refer to the position an organism occupies in a food chain. The higher the trophic level, the fewer individuals there are, and the more susceptible they are to extinction due to environmental changes and food availability. 5. **Evaluating the Options**: - **Option 1 (Large size)**: While size can affect survival, it is not the primary reason for extinction. - **Option 2 (Low reproductive potential)**: This can contribute to extinction but is not the main factor for the Bald Eagle. - **Option 3 (High trophic level)**: Being at a high trophic level means that Bald Eagles have fewer food sources and are more vulnerable to changes in the ecosystem. - **Option 4 (Change in migratory route)**: This could affect their survival but is not the primary reason for their risk of extinction. 6. **Conclusion**: The most significant reason for the Bald Eagle being at high risk of extinction is its high trophic level. This makes it more susceptible to environmental changes and decreases its chances of survival. **Final Answer**: The Bald Eagle had been at high risk of extinction due to its high trophic level (Option 3). ---
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Knowledge Check

  • Bald Eagle is the national bird of the United States of America. These birds prefer habitats near sea coasts, rivers, large lakes, and other large bodies of open water with an abundance of fish. Bald Eagles were on the brink of extinction in the late 20th century because of the consumption of DDT contaminated fish. The consumption of polluted fish caused the Bald Eagles to lay thin shelled eggs that cracked before hatching. The primary reason for the near extinction of the Bald Eagles was

    A
    air pollution
    B
    land pollution
    C
    waterpollution
    D
    noise pollution

  • Organisms facing a very high risk of extinction in the wild in the immediate future and needs urgent measures to save it from extinction, which of the following is the desirable approach?

    A
    ex-situ (off site) conservation
    B
    In-situ (on site) conservation
    C
    Conservation in biosphere reserve
    D
    Conservation in national park

  • A taxon which is facing an extremely high risk of extinction in the wild in immediate future is known as

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