a) Each trophic level, on average, will move 10% of the energy tied up in molecules to the next trophic level. How much of the energy from the sun is actually brought in to the first trophic level?b) When the producers convert energy and tie it up in the first trophic level, it is brought in as heat. True or false?c) Which of the following are true about ecosystems? Check all that apply.They contain both living and nonliving components.They contain both living and nonliving components.There is a transfer of energy through the system and some energy is lost as heat energy.There is a transfer of energy through the system and some energy is lost as heat energy.Nutrients repeatedly cycle through the ecosystem.Nutrients repeatedly cycle through the ecosystem.They represent the lowest level of biological organization.They represent the lowest level of biological organization.The ultimate source of energy for most ecosystems is organic molecules.

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Answered: a) Each trophic level, on average, will…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter54: Ecosystems And Global Change

Section: Chapter Questions

Problem 1ITD

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a) Each trophic level, on average, will move 10% of the energy tied up in molecules to the next trophic level. How much of the energy from the sun is actually brought in to the first trophic level?

b) When the producers convert energy and tie it up in the first trophic level, it is brought in as heat. True or false?

c) Which of the following are true about ecosystems? Check all that apply.

They contain both living and nonliving components.They contain both living and nonliving components.
There is a transfer of energy through the system and some energy is lost as heat energy.There is a transfer of energy through the system and some energy is lost as heat energy.
Nutrients repeatedly cycle through the ecosystem.Nutrients repeatedly cycle through the ecosystem.
They represent the lowest level of biological organization.They represent the lowest level of biological organization.
The ultimate source of energy for most ecosystems is organic molecules.

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