Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show...
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Transcript of Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show...
![Page 1: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/1.jpg)
![Page 2: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/2.jpg)
Evidence of Evolution
![Page 3: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/3.jpg)
Fossil Record
1. Shows that ancient species are similar to current ones
2. Show some species have remained unchanged for millions of years
3. Darwin predicted the existence of fossil intermediates between species
![Page 4: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/4.jpg)
Fossil Record
![Page 5: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/5.jpg)
Similarities in Structure
1. Homologous Structuresa. Similar features that originated in a
shared ancestor Ex. arm and wing
![Page 6: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/6.jpg)
Similarities in Structure
2. Analogous Structuresa. Structure that serves the same function in 2
species, but is NOT derived from a common
ancestorb. Examples
1. birds’ and insects’ wings2. walking limbs of insects & vertebrates3. cranium of vertebrates & exoskeletal head shield of insects
![Page 7: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/7.jpg)
Analogous Structures
![Page 8: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/8.jpg)
Similarities in Structure
3. Vestigial structuresa. Apparently useless feature that was
useful to an ancestor Ex. snakes w/pelvic & hind limb bones
![Page 9: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/9.jpg)
Comparative Embryology
1. Vertebrate embryos exhibit homologous structures during certain phases of development but become totally different structures in the adult forms
2. Example: many vertebrates embryos look virtually the same early on during development
![Page 10: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/10.jpg)
Comparative Embryology
![Page 11: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/11.jpg)
Comparative Biochemistry
1. Many different organisms share very similar complex metabolic molecules
2. The more closely related the species are, a greater # of amino acid sequences are shared
![Page 12: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/12.jpg)
Biogeography
1. Evolution is closely linked 2/climate & geological forces such as plate tectonics
2. Explains ancestral relationships & geographic distribution seen in fossils & living organisms
![Page 13: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/13.jpg)
Adaptations
A. Fitness: a measure of how well an organism can survive and reproduce in a specific environment
B. Types of Adaptations1. Camouflage2. Mimicry—similarity of one species to
another3. Antimicrobial resistance
![Page 14: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/14.jpg)
Camouflage
![Page 15: Evidence of Evolution Fossil Record 1.Shows that ancient species are similar to current ones 2.Show some species have remained unchanged for millions.](https://reader030.fdocuments.in/reader030/viewer/2022032723/56649d0b5503460f949df0b0/html5/thumbnails/15.jpg)
Mimicry