Evidence of Evolution Flashcards

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1
Q

Anatomical Evidence: Homology

A

Character traits that are similar due to shared ancestry may have different form and function despite their common origin

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2
Q

Anatomical Evidence: Homoplasy

A

Character traits that are similar in form and function but have evolved independently, usually due to convergent evolution

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3
Q

Anatomical Evidence: Convergent Evolution

A

Independent evolution of similar traits in different species or period of time due to selective pressure

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4
Q

Anatomical Evidence: Vestigial Traits

A

Character traits that are present in a species even though they do not necessarily serve the same purpose anymore

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5
Q

Anatomical Evidence: Development

A

Vertebrate embryos share characteristics in early developmental stages

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6
Q

Molecular Evidence

A

DNA and the genetic code are highly conserved because it is inherited from a common ancestor, the fewer differences in the genetic code the more closely related the species are

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7
Q

Direct Observation

A

Evolutionary change that can be observed in real time

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8
Q

The Fossil Record

A

Tells us that life on Earth has changed over time and provides evidence of intermediate/transitional forms

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9
Q

Biogeography

A

the past and present geographical distribution of species on Earth

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