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Energy Flow in Ecosystems

Question 2 • FL-2002070-M/J Comprehensive Science 2

Consumers at each trophic level convert only 10% of the energy in their food to energy for themselves. What happens to the other 90% of the energy their food produces? Check all that apply.It is lost as gas in the atmosphere.It is lost as heat.It is used in life processes.It is passed directly to offspring.It is released once the organism dies.

Answer
A
It is lost as gas in the atmosphere.
B
It is lost as heat.
C
It is used in life processes.
D
It is passed directly to offspring.
E
It is released once the organism dies.

Explanation

The remaining 90% is used for life processes such as movement, growth, and maintaining body functions; much of that energy is eventually released as heat. It is not passed directly to offspring or released simply because the organism dies.

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