. Principles of modern biology. Biology. Fig. 10-9. The cyclic usage of carbon compounds in various organisms, , the carbon cycle. Compounds not included in the circles are free in the environment. ->NITRATE 5ALT5^. Fig. 10-10. The cyclic usage of nitrogen compounds in various organisms, , the nitrogen cycle. Compounds not included in the circles are free in the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origi


. Principles of modern biology. Biology. Fig. 10-9. The cyclic usage of carbon compounds in various organisms, , the carbon cycle. Compounds not included in the circles are free in the environment. ->NITRATE 5ALT5^. Fig. 10-10. The cyclic usage of nitrogen compounds in various organisms, , the nitrogen cycle. Compounds not included in the circles are free in the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marsland, Douglas, 1899-. New York, Holt, Rinehart and Winston


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