1.Net Energy Gain is a concept used in energy economics that refers to the difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.
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But what is the question are you like not sure about it or what
The correct answer to your question is D.
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Answer: D. nervous tissue
Nerve tissues send signals to other parts of the body. Nervous tissue performs the role of signal conduction in the body.
