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Cells do not use the energy from oxidation reactions as soon as it is released. Instead, they convert it into small, energy-rich molecules such as ATP and nicotinamide adenine dinucleotide (NADH), which can be used throughout the cell to power metabolism and construct new cellular components.
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Because a scientific theory is something that has been proven over the trials of many tests
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This is probably to increase blood supply in the intestines. Blood is a transporter of digested food materials.
Keratinized, <span>stratified columnar, </span>
