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Synapomorphy/homology – a derived trait that is found in some or all terminal groups of a clade, and inherited from a common ancestor, for which it was an autapomorphy (i.e., not present in its immediate ancestor). Underlying synapomorphy – a synapomorphy that has been lost again in many members of the clade. If lost in all but one, it can ...
Plesiomorphy, symplesiomorphy, apomorphy, and synapomorphy all mean a trait shared between species because they share an ancestral species. [a] Apomorphic and synapomorphic characteristics convey much information about evolutionary clades and can be used to define taxa. However, plesiomorphic and symplesiomorphic characteristics cannot.
Synapomorphy/Homology – a derived trait that is found in some or all terminal groups of a clade, and inherited from a common ancestor, for which it was an autapomorphy (i.e., not present in its immediate ancestor). Underlying synapomorphy – a synapomorphy that has been lost again in many members of the clade. If lost in all but one, it can ...
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This is a condition affecting one to three million people in the U.S., up to 85% of whom are women. Yet, doctors are puzzled by this condition and often tell patients to "just drink more."
Swelling of the legs may also be linked to cardiac events — especially if there is also an underlying heart condition or risk factors such as obesity, diabetes or a family history of heart ...
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Patterns such as these lead many cladists to consider the concept of homology and the concept of synapomorphy to be equivalent. [ 25 ] [ 24 ] Some cladists follow the pre-cladistic definition of homology of Haas and Simpson, [ 26 ] and view both synapomorphies and symplesiomorphies as homologous character states.