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An overview of the four phases of food use in animals: ingestion, digestion, absorption, and elimina
During drought years on the Galapagos, small, easily eaten seeds become rare, le
Australopithecus sediba shares small brain size with other members of Australopithecus but also has
Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ...
Anatomy of the Small Intestine
Summary of digestion and absorption in the small intestine