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2.2 Ecological Pyramids Review

On this page you will find an overview of ecological pyramids. Use this page to introduce or review these concepts before practising to apply the concepts with  

The answers to the review questions are here  Ecological Pyramids Review - Answers (copy) and can be released to students via the student access feature.

Link to slides

1. Outline what are ecological pyramids.

2. Outline how the 2nd law of thermodynamics relates to ecological pyramids.

3. State what a pyramid of numbers shows and sketch their most common shape.

4. Name an exception to a normal pyramid of numbers.

5. State what a pyramid of biomass shows.

6. Outline why you might use a pyramid of biomass.

7. Explain why it is important to use dry mass measurements.

8. Explain why an aquatic ecosystem might have an exception to a normal pyramid of biomass shape.

9. Outline what a pyramid of productivity shows.

10. State what may be added to a pyramid of productivity that isn't added to the other ecological pyramids.

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