Homeostatic Evolution

021 - Homeostatic Mechanisms Reflect Evolution - Paul Andersen shows how homeostasis reflects of evolution through time. The endocrine system shows continuity through flatworms, earthworms and vertebrates. However the respiratory system shows change as organisms move onto land. The importance of the Tiktaalik fossil as a transitional fossil is emphasized. Do you speak another language? Help me translate my videos: www.bozemanscience.com/translations/ All of the images are licensed under creative commons and public domain licensing:Buhl, Vera. English: Grass, 55130 Laubenheim, Germany, September 15, 2008. Own work. commons.wikimedia.org/wiki/File:2008-09-15_(14)_Gr…. Crondon.com. Earthworm - Excretion & Osmoregulations, n.d. cronodon.com/BioTech/Earthworm_excretion.html. en.wikipedia, Anilocra at. English: A Flame Cell and Tube Cell, the Excretory System of Flatworms, (original upload date). Transfered from en.wikipedia Transfer was stated to be made by User:Vojtech.dostal. commons.wikimedia.org/wiki/File:Flamecell.jpg. en.wikipedia, Mokele at. English: Diagram of Buccal Pumping in a Frog, April 12, 2009. Transferred from en.wikipedia by SreeBot. commons.wikimedia.org/wiki/File:Buccal_pumping.jpg. "File:Fishapod Evolution.jpg." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Fishapod_evolution.jpg. "File:Gray1128.png." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Gray1128.png. File:Lampanyctodes Hectoris (Hector's lanternfish)2.png, n.d. commons.wikimedia.org/wiki/File:Lampanyctodes_hect…. File:Mouse.svg, n.d. commons.wikimedia.org/wiki/File:Mouse.svg. "File:Neil Shubin.jpg." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Neil_Shubin.jpg. "File:Pseudoceros Dimidiatus.jpg." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Pseudoceros_dimidiatus.…. "File:Thoracic Anatomy.jpg." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Thoracic_anatomy.jpg. "File:Tuna Gills in Situ Cut.jpg." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Tuna_Gills_in_Situ_cut.…. "File:Urinary System.svg." Wikipedia, the Free Encyclopedia. Accessed November 19, 2013. en.wikipedia.org/wiki/File:Urinary_system.svg. Foundation, Zina Deretsky, National Science. English: Life Restoration of Tiktaalik Roseae, a Transitional Fossil ("missing Link") between Sarcopterygian Fishes and Tetrapods from the Late Devonian Period of North America. Original Description: "Fossil Fish Bridges Evolutionary Gap between Animals of Land and Sea.," Unknown. National Science Foundation. commons.wikimedia.org/wiki/File:Tiktaalik_roseae_l…. Mokele. English: Lateral View of Lungs of a Dissected Protopterus Dolloi, February 15, 2009. Transferred from en.wikipedia. commons.wikimedia.org/wiki/File:Lungs_of_Protopter…. Schneider, Kenneth Cole. Earthworm Macro 20100515, May 15, 2010. www.flickr.com/photos/rosyfinch/4612063657/. User:Tannin. English: Australian Lungfish (Neoceratodus Forsteri), [object HTMLTableCellElement]. Picure taken by Tannin (from English wikipedia). commons.wikimedia.org/wiki/File:Australian-Lungfis…. Wknight94. Still Water in Tracy Arm, Southeast of Juneau, Alaska., August 4, 2009. Own work. commons.wikimedia.org/wiki/File:Tracy_Arm_calm_wat…. "Αρχείο:2 Panthera leo.jpg." Βικιπαίδεια. Accessed November 19, 2013. el.wikipedia.org/wiki/%CE%91%CF%81%CF%87%CE%B5%CE%…. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License

• #education
• #homeostasis
• #evolution
• #ap_biology
• #tutorial
• #endocrine_system
• #respiratory_system
• #tiktaalik