Taxonomy and Phylogeny or Animals Flashcards

1
Q

taxonomy

A

formal system of naming and classifying species

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2
Q

systematics

A

classifying organisms based on similarity, biogeography

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3
Q

Carolus Linnaeus

A

classification scheme based on morphology
-binomial nomenclature
KPCOFGS

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4
Q

3 criteria for identifying species

A
  1. common descent
  2. reproductive community
  3. distribution (time and space)
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5
Q

species

A

constitue a population lineage with a history of evolutionary descent separate from other such lineages

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6
Q

homology

A

character similarity resulting from common ancestry

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7
Q

characters

A

organismal features used to construct a phylogeny

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8
Q

homoplasy (analogous)

A

mis-represents common ancestry

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9
Q

cladistics

A

classifies organisms into hierarchical monophyletic groups (actual process of evolution)

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10
Q

cladogram

A

ancestral relations between organisms- branching diagram

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11
Q

clade

A

group consisting of a single organism and all its descendants

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12
Q

monophyly

A

includes the most recent common ancestor an all descendants of that ancestor

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13
Q

paraphyly

A

it includes the most recent common ancestor of all members of a group and some but not all descendants of that ancestor

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14
Q

polyphyly

A

does not include the most recent common ancestor

-has atlas two separate evolutionary origins

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15
Q

convergent evolution

A

independent evolution of similar features in species of different lineages

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16
Q

secondary loss/ reversion

A

consist on the reversion of a trait to a state that looks ancestral
(loss of wings in stick insects)