Answer:
20%
Explanation:
Your brain consumes about 20% of our daily intake of calories. That's about 400-500 calories for a man and 350-400 for a woman. Studies show that the brain is very metabolically active and will actually burn about 109 calories per pound of its mass per day.
It's a tissue. An organ is a group of different tissues which (though they perform slightly different functions), work together in the same general processes.
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.