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.
what questions do you need help with?
But what is the question are you like not sure about it or what
The correct answer to your question is D.
(:
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.