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Comparative Vertebrate Anatomy
OU CVA Lab Practical 1
10
Biology
Undergraduate 1
01/31/2009

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Term
Homology
Definition
Similarity of structure that results from inheritance from a common ancestor
Term
Plesiomorphic
Definition
ancestral
Term
Apomorphic
Definition
derived
Term
Systematics
Definition
Studies of relationships among organisms involving 1) the similarities of structure among closely related organisms and 2) the modifications of basic structural plans that distinguish specific organisms
Term
Serially Homologous Structures
Definition
Structures that are repeated within the same organism
Term
Homoplasty
Definition
Similarity of structure due to convergence, appear similar but reflect different independent paths of evolution
Term
Analogous
Definition
Modification of structures for similar function
Term
Phylogeny
Definition
Evolutionary history
Term
Taxon
Definition
Any subset of organisms you wish to define
Term
Synapomorphic
Definition
Derived characteristics shared by multiple taxa
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