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Flashcards in Evidence of Evolution Deck (21):
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4 main bodies of evidence

Paleontology
Embryology
Comparative anatomy
Molecular biology

1

Paleontology

Study of ancient items like fossils, bones, etc.

2

Fossil

Preserved bone or other trace of an ancient organism. Formed when the dead animal or something of an animal is left behind and buried by sediment.

3

The _______ fossils are the _______ they are

Deeper ; older

4

Morphology

Describing what fossils look like. Can be used with location of fossils to determine information about an organism's ancestors.

5

Transitional fossil

Not one generation of first species but gradual progression (all fossils)

6

Biogeography

Where organisms live

7

Embryology

Study if developmental patterns in embryos

8

Vertebrates in _____ stages of ________ are similar

Early ; development

9

Comparative anatomy

Comparing how organisms are put together through homologous structures and analogous structures

10

Homologous structures

Structures that are derived from a common ancestor but not the same function and caused by divergent evolution

11

Divergent evolution

Evolution toward different traits in closely related species

12

Analogous structures

Structures that look similar but evolved from different structures and caused by convergent evolution

13

Convergent evolution

Similar traits in very distantly related species

14

Vestigial structures

Remnants of an organism's evolutionary past and has no function

15

Molecular biology

similarities in common biological molecules like DNA or proteins

16

The greater the _________, the higher the ______ difference I. The compared molecules

Divergence ; %

17

2 specific areas of molecular biology

Pseudo genes
Hox genes

18

Pseudo genes

Non-functioning sections of DNA (don't code for anything), carried along with functional DNA

19

Hox genes

Come from distant common ancestor, determine head to tail development in embryos

20

Genes shared by all organisms

"Master genes"