C. <span>Energy flows through an ecosystem and cannot be recycled. </span>
The correct answer for the given question above is the second option. Primitive heterotrophs produce energy through chemical fermentation. Chemical fermentation is the same with the process of anaerobic respiration. This involves the breaking down of glucose into energy sources anaerobically.
The main pigment of plants is "chlorophyll," which gives the green color characteristic of most vegetables, absorbs very well the light in the bands of red and violet, reflecting the green light.
