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AP Biology Embedded VideosPaul Andersen | Homeostatic Evolution
021 - Homeostatic Mechanisms Reflect Evolution - Paul Andersen shows how homeostasis reflects of evolution through time. The endocrine system shows continuity through flatworms, earthworms and vertebrates. However the respiratory system shows change as organisms move onto land. The importance of the Tiktaalik fossil as a transitional fossil is emphasized. |
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