question

What is the source of all energy in the pyramid in Model 1

answer

Sunlight hitting the earth's surface

question

How much energy does this source provide to a square meter of the Earth per year? (be sure your answer includes units)

answer

3,190,000 kcals

question

Label the pyramid levels in Model 1 with the following: primary producers, primary consumers, secondary consumers, and tertiary consumers

answer

Oak tree leaves are the primary producers Caterpillars are the primary consumers Blue Jays are the secondary consumers Hawks are the tertiary consumers

question

What percentage of the source energy from question 1a is absorbed by the oak leaves in Model 1?

answer

8 %

question

By what process do the oak leaves harness this energy?

answer

photosynthesis

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question

Describe how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid

answer

By consuming them

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question

How much energy per year do the caterpillars in Model 1 obtain from eating the leaves in a square meter of the oak tree?

answer

4,000 kcal

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question

What percentage of the energy that was originally absorbed by the oak tree leaves is passed on to the caterpillars

answer

13.5%

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question

What percentage of the energy absorbed by the oak leaves is not passed on to the caterpillars

answer

84.3%

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question

With your group, list at least three possible uses and/or products of the energy abosrbed by the oak leaves that did not contribute to the production of biomass.

answer

Photosynthesis, heat,leaves changing colors

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POGIL Ecological Pyramids How does energy flow through an ecosystem? – Flashcards

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