cell respiration
the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining processes and discarding, as waste products, carbon dioxide and water. Organisms that do not depend on oxygen degrade foodstuffs in a process called fermentation.
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| a scrap or morsel of food left at a meal. |
| a stew of meat, vegetables, potatoes, etc. |
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