In a typical terrestrial ecosystem, approximately what percentage of energy is transferred from one trophic level to the next?

A 1%

B 10%

C 50%

D 90%

✓ Correct Answer: Option B

The 10% rule in ecology states that roughly 10% of the energy from one trophic level is transferred to the next, with the remaining 90% lost primarily as metabolic heat.

💡 Why is B) the correct answer?

The correct answer to the question "In a typical terrestrial ecosystem, approximately what percentage of energy is transferred from one trophic level to the next?" is Option B: 10%.

The other options — A) 1%, C) 50%, D) 90% — are incorrect for this IB Exam Prep question. As explained above: The 10% rule in ecology states that roughly 10% of the energy from one trophic level is transferred to the next, with the remaining 90% lost primarily as metabolic heat.

📚 About This IB Exam Prep Practice Question

This 3-level IB Exam Prep question from the Biology topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free IB Exam Prep practice test or use flashcards for spaced repetition review.

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In a typical terrestrial ecosystem, approximately what percentage of energy is transferred from one trophic level to the next?

✓ Correct Answer: Option B

📚 About This IB Exam Prep Practice Question

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