File:Morgan 1925 fig05.jpg
Fig. 5. Legs of Five Mammals
Drawn to scale, to show homologous parts. (After Leconte, from Romanea.)
The legs of man, monkey, dog, sheep, and the horse are made up of similar bones (fig, 5) . The same parts are found in the leg of the lizard, the frog, and, even though less certainly, in the fins of fishes. Comparison does not end here. We find similarities in the skull and backbones of these same animals ; in the brain ; in the digestive system; in the heart and blood vessels; in the muscles.
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Morgan (1925) Evolution and Genetics: 1 Different Kinds of Evolution | 2 Four Great Historical Speculations | 3 Evidence for Organic Evolution | 4 Materials of Evolution | 5 Mendel's Two Laws of Heredity | 6 Chromosomes and Mendel’s Two Laws | 7 Linkage Groups and the Chromosomes | 8 Sex-Linked Inheritance | 9 Crossing-over | 10 Natural Selection and Evolution | 11 Origin of Species by Natural Selection | 12 Non-Inheritance of Acquired Characters | 13 Human Inheritance | Figures
Morgan, T. H. (1925). Evolution and genetics. Princeton: Princeton University Press.
Cite this page: Hill, M.A. (2019, April 19) Embryology Morgan 1925 fig05.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Morgan_1925_fig05.jpg
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