<span>The leaf exerts a force on the sidewalk; the sidewalk exerts a force on the leaf.</span>
Cellular<span> Respiration. </span>Cellular<span> respiration is the </span>process<span> of oxidizing food molecules, like </span>glucose<span>, to </span>carbon dioxide and water<span>. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the </span>cell<span>.
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I believe it is A (Adenine)
Answer:
A nuclear membrane is a double membrane that encloses the cell nucleus. It serves to separate the chromosomes from the rest of the cell. The nuclear membrane includes an array of small holes or pores that permit the passage of certain materials, such as nucleic acids and proteins, between the nucleus and cytoplasm.