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13 Cards in this Set
- Front
- Back
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The study of biodiversity in an evolutionary context encompassing taxonomy and phylogeny. Classifying organisms and determining their evolutionary relationships
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Systemics
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Similar structures that have evolved independently in two species. Convergent similarities that independently evolve for the same function
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non-homology, analogy, homoplasies
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Similarity in characteristics resulting from a shared ancestry
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Homology
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Some of the shared characteristics of organisms that involve protein sequences, gene sequences and position of the genes on chromosomes
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molecular characteristics
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Some of the shared characteristics of organisms that involve mating patterns or mating calls are also known as
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Behavioral characteristics
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Some of the shared characteristics of organisms can be anatomical or embryological also known as what
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Morphological characteristics
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A phylogenetic group where its members have different ancestors is known as what?
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polyphyletic
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A phylogenetic group that includes an ancestral species and some but not all of its decedents is known as what
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paraphyletic
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This is a species or group of species from an evolutionary lineage that is not incorporated into the interest lineage. The lineage of interest is know as what? Example Lungfish would but a divergent group because they lack certain derived traits.
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1) Out Group 2) In Group
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A phylogenetic group that includes an ancestral species and all of its descendants is known as what?
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Monophyletic or clade
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This is a derived trait that is shared by two or more taxa, whose ancestor does not possess the trait. Hair in mammals, is considered a shared derived trait.
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Synapomorphy
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A phylogenetic group where its members have different ancestors is known as what?
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polyphyletic
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This is a trait that is shared between two or more taxa, but is also shared with other taxa that have an earlier common ancestor. This is a primitive or basal trait referring to some common ancestry. A backbone in vertebrates is a shared ancestral character
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Symplesiomorphy
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