Which organ in the fish is most similar to the human respiratory system?

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

2%? i tried finding the exact sorry if it's not 100% correct ; -;

i don't understand

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