. Principles of modern biology. Biology. Fig. 30-8. Polar bear on an iceberg off Greenland. (Courtesy of the American Museum of Natural History, New York.) ture range of their native habitat. In most cases the metabolic enzymes are keyed to operate efficiently only within some rather restricted range of temperature, which may be high or low according to the evolutionary experience of the species. In fact, there are "" • <m. Fig. 30-9. Female fur seals. (Courtesy of the Amer- ican Museum of Natural History, New York.). Please note that these images are extracted from scanned page i


. Principles of modern biology. Biology. Fig. 30-8. Polar bear on an iceberg off Greenland. (Courtesy of the American Museum of Natural History, New York.) ture range of their native habitat. In most cases the metabolic enzymes are keyed to operate efficiently only within some rather restricted range of temperature, which may be high or low according to the evolutionary experience of the species. In fact, there are "" • <m. Fig. 30-9. Female fur seals. (Courtesy of the Amer- ican Museum of Natural History, New York.). 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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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbiology