Bevis för evolution

Рет қаралды 14,909

Күн бұрын

Läs mer om bevisen för evolution på ehinger.nu/undervisning/kurse...
Övningsuppgifter, gamla prov, laborationer m.m. finns på ehinger.nu/undervisning/kurse...
Innehåll:
00:00 Introduktion. Hur kan man tala om "bevis för evolution"?
01:00 Fossil
01:24 Fossilbildning
02:11 Några klassiska fossiltyper
02:59 Ledfossil
04:06 Hur stratigrafi och ledfossil hänger samman
07:16 Radiometriska metoder för åldersbestämning
08:00 Den fylogenetiska regeln
08:47 Likheter i anatomin: Homolog och analoga organ
10:01 Likheter i DNA och protein
11:11 Likheter i beteende
11:30 Rudiment
12:31 Felande länkar
13:04 Hästens evolution
Bildkällor:
• Trilobit: commons.wikimedia.org/wiki/Fi..., attribution: By TheoricienQuantique (Own work) [Public domain], via Wikimedia Commons
• Ortoceratit-fossil: Egen bild
• Ortoceratit: commons.wikimedia.org/wiki/Fi..., attribution: By Nobu Tamura (spinops.blogspot.com) (Own work) [GFDL (www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Dinosaurie-fotspår: commons.wikimedia.org/wiki/Fi..., attribution: By Greg Willis from Denver, CO, usa (Dinosaur footprint) [CC BY-SA 2.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Grand Canyon: commons.wikimedia.org/wiki/Fi..., attribution: By Chensiyuan (Own work) [GFDL (www.gnu.org/copyleft/fdl.html) or CC BY-SA 4.0-3.0-2.5-2.0-1.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Örnklippan: commons.wikimedia.org/wiki/Fi..., attribution: By Julius Reque (Traveling12Feet.com) [CC BY-SA 3.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Dunkleosteus: commons.wikimedia.org/wiki/Fi..., attribution: By Creator:Dmitry Bogdanov (dmitrchel@mail.ru) [GFDL (www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Tiktaalik: commons.wikimedia.org/wiki/Fi..., attribution: By Obsidian Soul [CC BY-SA 3.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Dimetrodon: commons.wikimedia.org/wiki/Fi..., attribution: By Богданов dmitrchel@mail.ru (Own work) [Public domain], via Wikimedia Commons
• Tyrannosaurus rex: commons.wikimedia.org/wiki/Fi..., attribution: By Nobu Tamura (spinops.blogspot.com) (Own work) [GFDL (www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (creativecommons.org/licenses/b...) or CC BY 2.5 (creativecommons.org/licenses/b...)], via Wikimedia Commons
• Ammoniter: commons.wikimedia.org/wiki/Fi..., attribution: By Takkk (Own work) [CC BY-SA 3.0 (creativecommons.org/licenses/b...) or GFDL (www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
• Den fylogenetiska regeln: commons.wikimedia.org/wiki/Fi..., attribution: By Lithograph by J. G. Bach of Leipzig after drawings by Haeckel, from Anthropogenie published by Engelmann [Public domain], via Wikimedia Commons
• Homologa strukturer: commons.wikimedia.org/wiki/Fi..., av Mehinger, CC BY-SA 4.0 (creativecommons.org/licenses/..., via Wikimedia Commons
• Likheter i beteende: Image from: Gross L. Evolution of neonatal imitation. PLoS Biol. 2006 Sep;4(9):e311. doi: 10.1371/journal.pbio.0040311 and neuroscientificallychallenged... (Fair use)
• Skelett av bardval: commons.wikimedia.org/wiki/Fi..., attribution: By Meyers Konversionlexikon (Meyers Konversionlexikon 1888) [Public domain or Public domain], via Wikimedia Commons
• Hästens evolution: commons.wikimedia.org/wiki/Fi..., attribution: Mcy jerry at the English language Wikipedia [GFDL (www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (creativecommons.org/licenses/b...)], from Wikimedia Commons

Пікірлер: 10

@bigchungus9187 Жыл бұрын

Ska se till att visa den här för vår andra vice talman... jättebra video!

@MagnusEhinger01 Жыл бұрын

Haha, tack! Gör det! 😉

@andrewbrandtmbgy9082 Жыл бұрын

Kan inte tro att den komiskt stora kaninen big chungus ska visa bevis för evolution till sin andra vice talman

@gabsgamez546 5 ай бұрын

🎯 Key Takeaways for quick navigation: 00:01 🧭 *Evolutionary Basics* - Overview of the scientific method in biology. - Emphasis on the importance of starting with data and drawing conclusions. - Introduction to the focus on "evidence for evolution" through collected data. 01:00 🦴 *Formation of Fossils* - Explanation of fossils as petrified remains of organisms. - Detailed process of fossilization using the example of a fish. - Examples of classic fossils like trilobites, orthoceratites, and dinosaur footprints. 03:06 🏞️ *Stratigraphy and Led Fossils* - Introduction to stratigraphy and its role in dating fossils. - Explanation of how led fossils help determine the age of other fossils. - Illustration using the example of Grand Canyon layers and the principle of "stratigraphy + led fossils = truth." 05:24 🌐 *Evolutionary Progression in Fossil Record* - Description of fossil progression in Grand Canyon layers. - Presentation of different vertebrate groups and their appearance in the fossil record. - Emphasis on the principle that fossilized organisms are tied to specific layers, indicating simultaneous existence and evolution. 06:51 🔍 *Characteristics of Led Fossils* - Criteria for effective led fossils: rapid evolution, wide geographic distribution, ease of identification. - Examples of led fossils, including trilobites and ammonites. - Importance of led fossils in dating and understanding geological history. 07:43 ⚛️ *Radiometric Dating* - Explanation of radiometric dating using radioactive isotopes. - How the decay of isotopes helps determine the age of fossils and rocks. - Importance of using multiple methods for accurate dating. 08:13 🧬 *Phylogenetic Rule* - Discussion of the phylogenetic rule in embryonic development. - Illustration of homologous structures and their significance. - Examples of how homologous structures indicate evolutionary relationships. 09:38 🧠 *DNA and Protein Similarities* - Explanation of DNA and protein similarities as evidence for evolution. - Demonstration of how DNA and amino acid sequences show relatedness. - Importance of genetic similarity in determining evolutionary relationships. 11:22 🦍 *Behavioral and Rudimentary Evidence* - Overview of behavioral similarities in closely related species. - Introduction to rudiments as evolutionary remnants. - Example of rudimentary structures in whales as evidence of their land-dwelling ancestors. 12:19 🦴 *Rudimentary Organs* - Explanation of rudimentary organs, such as skeletal remnants in whales. - Examples of rudiments in different species, like tailbones, blind mammal eyes, and ear muscles in primates. - Rudimentary structures may have reduced or lost functions over evolutionary time. 13:48 🔄 *Missing Links and Horse Evolution* - Introduction to the concept of missing links in the evolutionary chain. - Discussion of the horse's evolution as a notable example. - Explanation of environmental changes driving evolutionary adaptations in horses over millions of years. 14:36 🌿 *Evolutionary Adaptation* - Overview of the horse's transition from forest-dwelling leaf and fruit-eater to grass-eater on the steppe. - Importance of environmental changes in shaping evolution. - Emphasis on the role of fitness in driving evolutionary adaptations. Made with HARPA AI