Metabolism is a set of chemical reactions happening within an organism. These reactions are necessary to maintain the living state of cells, allowing them to reproduce, grow, and respond to environment.
<span>The answer would be A. it would not be D because marine life does not concern metals and other resources like that. It would be A because life needs carbon, it already does, but it needs to be well balanced and not disrupted.
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Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration .