B, because it's not an advantage for something to be expensive and time consuming
Answer: I guess the first one
Explanation:
Answer:The process uses oxygen and glucose and results in carbon dioxide (CO2), water (H2O), and usable energy. Oxygen and glucose are the reactants. Reactants are the substances changed during a chemical reaction. Carbon dioxide and water are the products.
Explanation: hopefully this helps ( i learned this like two years ago )
<span>The reactivity of the elements depends on the number of electrons in the outermost shell and the distance of outermost shell depends on the influence of the nucleus.........</span>
Metabolism- This chemical processes that occur within a living organism in order to sustain life.