When you climb a rope you change blank energy into blank energy

In every energy  transformation, some THERMAL ENERGY is released.

When you climb a rope, you change CHEMICAL ENERGY INTO KINETIC ENERGY.

 In the muscles cells in your body, CHEMICAL ENERGY is changed into KINETIC ENERGY.

Energy can neither be created nor destroyed, because of this, energy usually remain constant but it can be converted from one form to another.
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Biochemistry, it deals with the chemical constitution, the breakdown and the synthesis of plant and animal products.