Tillie Crowley per. 2 by Tillie Crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri Evolution Project en-us 2017-06-09 16:43:58 UTC 2023-06-23 17:59:43 UTC hello@padlet.com The 5 major extinctions tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/175902634 2017-06-09 16:55:39 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/175902634 VIST tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/175902844 Variation= Mutation 
Inheritance= DNA and Sexual Selection
Selection= Selection and Genetic Drift
Time= Migration / Gene Flow]]> 2017-06-09 16:58:06 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/175902844 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/175902888 2017-06-09 16:58:35 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/175902888 Natural Selection tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125223 The process where organisms better adapted to their environment tend to survive and produce more offspring]]> 2017-06-12 16:16:59 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125223 Mutation tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125251 the changing of the structure of a gene, resulting in a different form that may be transmitted to following generations, caused by the transformation of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.]]> 2017-06-12 16:17:08 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125251 Migration/Gene Flow tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125303 In population genetics, gene flow (also known as gene migration) is the transfer of genetic variation from one population to another.]]> 2017-06-12 16:17:30 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125303 Divergent, Parallel, and Convergent Evolution tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125381 Divergent: the process of tracing back two or more species to their common ancestor.
Parallel: the independent evolution of similar traits, starting from a similar ancestral condition.
Convergent: the process where organisms not closely related independently evolve similar traits as a result of having to adapt to similar environments.]]> 2017-06-12 16:18:04 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125381 Sexual Selection tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125453 natural selection proceeding through choice by one sex for certain characteristics in individuals of the other sex.



]]> 2017-06-12 16:18:43 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125453 Genetic Drift tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125571 variation in the relative consistency of different genotypes in a small population



]]> 2017-06-12 16:19:34 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125571 Vestigial Organs tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125592 A simple structure in humans comparable to a functional structure or organ in ancestral animals.]]> 2017-06-12 16:19:43 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125592 Ontogeny Recapitulates Phylogeny tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125680 a biological hypothesis that the development of the embryo of an animal, from fertilization to gestation, goes through stages representing successive stages in the evolution of the animal's remote ancestors]]> 2017-06-12 16:20:15 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125680 Molecular Evolution tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125746 the process of change in the sequence combination of cellular molecules such as DNA, RNA, and proteins across generations.]]> 2017-06-12 16:20:49 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176125746 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176126121 2017-06-12 16:23:14 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176126121 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176126657 2017-06-12 16:26:42 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176126657 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176127972 2017-06-12 16:35:35 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176127972 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176129041 2017-06-12 16:42:38 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176129041 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176278410 2017-06-13 16:19:37 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176278410 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176278902 2017-06-13 16:23:22 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176278902 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176279919 2017-06-13 16:30:23 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176279919 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176280784 2017-06-13 16:35:59 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176280784 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176282070 2017-06-13 16:44:02 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176282070 Ordovician-Silurian Mass Extinction tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176283524
  • The third largest extinction in Earth's history
  • this mass extinction had two peak dying times separated by hundreds of thousands of years
  • during this mass extinction, most life was in the sea, so it was sea creatures such as trilobites, brachiopods and graptolites that decreased a lot
    • ]]>     2017-06-13 16:53:41 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176283524     Late Devonian Mass Extinction tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176327215
  • Three quarters of all species on Earth died out in this mass extinction
  •  it may have been a series of extinctions over several million years, rather than a single event
  • life in the shallow seas were the worst affected
    • ]]>     2017-06-14 00:02:18 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176327215     tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176327574 2017-06-14 00:07:27 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176327574 Homologous Structures tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176327715 an example of an organ or bone that appears in different animals]]> 2017-06-14 00:09:16 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176327715 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328212 2017-06-14 00:15:19 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328212 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328612 2017-06-14 00:20:39 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328612 Permian Mass Extinction tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328670
  • this mass extinction has been nicknamed The Great Dying
  • 96% of species died out
  • all life on Earth today is descended from the 4% of species that survived
    • ]]>     2017-06-14 00:21:42 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328670     tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328846 2017-06-14 00:23:53 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328846 Triassic-Jurassic Mass Extinction tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328923
  • during the final 18 million years of the Triassic period, there were two or three phases of extinction whose combined effects created this mass extinction
  • climate change, flood basalt eruptions, and an asteroid impact have all been blamed for this loss of life
    • ]]>     2017-06-14 00:24:46 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176328923     tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176329118 2017-06-14 00:26:41 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176329118 Cretaceous-Tertiary Mass Extinction tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176331526
  • also known as the K/T extinction
  • known for the death of the dinosaurs
  • many other organisms perished at the end of this mass extinction including the ammonites, many flowering plants and, the last of the pterosaurs
    • ]]>     2017-06-14 00:59:19 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176331526     tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176331717 2017-06-14 01:01:46 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176331717 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176332905 2017-06-14 01:18:03 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176332905 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333011 2017-06-14 01:19:09 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333011 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333247 2017-06-14 01:21:45 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333247 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333352 2017-06-14 01:23:02 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333352 tillie_crowley https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333508 2017-06-14 01:24:52 UTC https://padlet.com/tillie_crowley/lnwy87l6d9ri/wish/176333508