The evolutionary relationships among organisms; the patterns of lineage branching produced by the true evolutionary history of the organisms being considered.
Refers to a character or feature in a group of organisms that is inherited from a common ancestor. Teeth are a primitive characteristic of birds since birds inherited them from ...
Darwin's definition: descent with modification. The term has been variously used and abused since Darwin to include everything from the origin of man to the origin of life.
The world's most popular fruit. The most common U.S. variety is the yellow Cavendish. They are picked green and develop better flavor when ripened off ...
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