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Study C4.2.11—Energy pyramids conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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The following table shows the approximate production of organisms living in a salt marsh in the USA.

Construct a pyramid of energy showing the trophic levels for this salt marsh.

Figure for Answer to Question 1 — IB Biology SL

Correct shape of pyramid with base larger than primary consumer and secondary consumer smaller than the rest.
Pyramid proportions very close to 80:10:1 / correctly labelled values with units: 24000, 3000 and $300\ \mathrm{kJm}^{-2}\mathrm{y}^{-1}$ .
Correctly labelled levels.

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IB Biology SL C4.2.11 Energy Pyramids Topic Practice

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Question 1