Phylogeny Flashcards

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1
Q

Phylogeny

A

Evolutionary history of a group of species or group of related species

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2
Q

Systematics

A

Classifies organisms and determines their evolutionary relationships
Fossil, molecular, and genetic data to infer evolutionary relationships

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3
Q

Taxonomy

A

Ordered division and naming of organisms

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4
Q

Binomial

A

2 part naming system of species

Developed by Carolus Linnaeus

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5
Q

Branch point

A

Divergence of 2 species

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6
Q

Sister taxa

A

Groups that share an immediate common ancestor

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7
Q

Rooted tree

A

Includes a branch that represents the last common ancestor of all taxa in the tree

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8
Q

Basal taxon

A

Diverges early in the history of a group and originates near the common ancestor of the group

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9
Q

Polytomy

A

Branch from which more than 2 groups emerge

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10
Q

Early taxonomy

A

2 kingdoms: plants and animals

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11
Q

5 kingdoms

A

Monera (prokaryotes), protista, plantae, fungi, and anamalia

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12
Q

3 domains

A

Bacteria, archaea, eukarya

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13
Q

Monophyletic group

A

Common ancestor

All descendants

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14
Q

Paraphyletic group

A

Common ancestor

Not all descendants

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15
Q

Polyphyletic group

A

2 or more ancestors

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