Amazing Arachnids by Christopher Binegar https://padlet.com/cb587/lasv009eifrq en-us 2018-05-21 14:59:37 UTC 2023-07-26 06:35:34 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Xmastree.png Major Characteristics cb587 https://padlet.com/cb587/lasv009eifrq/wish/262390115 - have eight legs
- mandibles
- an open circulatory system
- and a fused head called a cephalothorax]]> 2018-05-21 15:03:35 UTC https://padlet.com/cb587/lasv009eifrq/wish/262390115 Embryology cb587 https://padlet.com/cb587/lasv009eifrq/wish/262392612 wolf spiders: 
  1. Wolf spiders are one of the only species of spiders to stay with their egg sacs. staying with the egg sac may or may not increase the survival rate, but I couldn’t find whether or not this is true. 
  2. Ticks: Female ticks lay thousands of eggs at a time. They do not stay with their babies. Their babies go through life cycles. the four stages are egg, larva, nyph, and adult.
  3. Scorpions have about 100 babies at a time. baby scorpions stay with their mothers for 10-20 days.
  4. Their head first develops, then their legs, and then throasix region.


]]> 2018-05-21 15:09:48 UTC https://padlet.com/cb587/lasv009eifrq/wish/262392612 Fossil records cb587 https://padlet.com/cb587/lasv009eifrq/wish/262392795
  • Name of fossil: Nephila jurassica
    • Age of fossil (give time period as well)
    Jurassic period

    1. Name of fossil: Electroblemma bifida
    Age of fossil (give time period as well)
    99 million years old
    Cretaceous period


    1. Name of fossil: Deinocroton draculi
    Age of fossil (give time period as well)
    99 million years old
    Cretaceous period

    1. Name of fossil: Eurypterids
    Age of fossil (give time period as well)
    permian period
    460 to 248 million years ago

    1. Name of fossil: Chimerarachne yingi
    Age of fossil (give time period as well)
    100 million years ago
    crestaceous period


    First arachnids were crab-like creatures.


    ]]>     2018-05-21 15:10:14 UTC https://padlet.com/cb587/lasv009eifrq/wish/262392795     Anatomy and physiology cb587 https://padlet.com/cb587/lasv009eifrq/wish/262392944
  • all have mandables
  • all have eight legs
  • all have a fused head 
  • all have an open circulatory system


    • ]]>     2018-05-21 15:10:36 UTC https://padlet.com/cb587/lasv009eifrq/wish/262392944     Chromosomal analysis cb587 https://padlet.com/cb587/lasv009eifrq/wish/262393504
  • Meshweavers, a variety of spider, has a chromosome number of 2. While jumping spiders having a chomosome number of 38. They are both related, even though their chromosome numbers are so different. 

    • ]]>     2018-05-21 15:11:55 UTC https://padlet.com/cb587/lasv009eifrq/wish/262393504     Evolution at work cb587 https://padlet.com/cb587/lasv009eifrq/wish/262397248
  • There is an island that is populated by wolf spiders. This shows geographic isolation, meaning organisms are separated from exchanging genetic material with other organisms of the same species.
  • On the island, the species went through stabilizing selection because they were critically endangered, but managed to survive.
  • Immigration impacts all three of the organisms in the taxonomic group. This is because a new individual brings in new genes into the mix of things, causing a new mix of genes to flow in and out of the species. This as well affects the stragglers because they may not have anyone to mate with if immigration occurs.
  • Evolution follows the gradualism process of evolution because the wolf spiders evolved complicated venom over a long period of time, rather than a short, drastic time. 


    • ]]>     2018-05-21 15:19:57 UTC https://padlet.com/cb587/lasv009eifrq/wish/262397248     Conclusion cb587 https://padlet.com/cb587/lasv009eifrq/wish/262397955 Descent through modification is seen through the venomn changes in spiders throughout the years as they change and evolve to adapt to catch bigger and more difficult prey. This shows directional selection because the species went from weaker venomn to stronger venomn. ]]> 2018-05-21 15:21:35 UTC https://padlet.com/cb587/lasv009eifrq/wish/262397955 Taxonomy cb587 https://padlet.com/cb587/lasv009eifrq/wish/263052509

    • Common name: Black Widow
    Animalia
    Anthropod
    arachnid
    spider
    Theridiidae
    widow spiders
    Latrodectus
    2.
    Common name: Emporor Scorpion
    animalia
    anthropod
    arachnid
    scorpion
    Scorpionidae
    pandinus
    emporor scorpion
    3.
    Common name: Lone Star Tick
    animalia
    anthropod
    arachnid
    ixodida
    ixodidae
    Amblyomma
    Lone star tick
    ]]>     2018-05-23 14:49:33 UTC https://padlet.com/cb587/lasv009eifrq/wish/263052509     Taxonomy pt.2 cb587 https://padlet.com/cb587/lasv009eifrq/wish/263054636 Taxonomy alone can give you information regarding the relatedness of these organisms because it shows that they are closely related because they are all in the same category up until Order.]]> 2018-05-23 14:55:16 UTC https://padlet.com/cb587/lasv009eifrq/wish/263054636 Black widow cb587 https://padlet.com/cb587/lasv009eifrq/wish/263384523 2018-05-24 15:18:41 UTC https://padlet.com/cb587/lasv009eifrq/wish/263384523 Lone star Tick cb587 https://padlet.com/cb587/lasv009eifrq/wish/263384996 2018-05-24 15:19:54 UTC https://padlet.com/cb587/lasv009eifrq/wish/263384996 Emperor Scorpion cb587 https://padlet.com/cb587/lasv009eifrq/wish/263631405 2018-05-25 13:15:47 UTC https://padlet.com/cb587/lasv009eifrq/wish/263631405 cb587 https://padlet.com/cb587/lasv009eifrq/wish/263633757 This show a phylogenetic tree of arachnids.]]> 2018-05-25 13:23:43 UTC https://padlet.com/cb587/lasv009eifrq/wish/263633757 Nephila jurassica cb587 https://padlet.com/cb587/lasv009eifrq/wish/263634180 2018-05-25 13:25:22 UTC https://padlet.com/cb587/lasv009eifrq/wish/263634180 Electroblemma bifida cb587 https://padlet.com/cb587/lasv009eifrq/wish/263634598 2018-05-25 13:26:55 UTC https://padlet.com/cb587/lasv009eifrq/wish/263634598 Deinocroton draculi cb587 https://padlet.com/cb587/lasv009eifrq/wish/263635495 2018-05-25 13:30:08 UTC https://padlet.com/cb587/lasv009eifrq/wish/263635495 Eurypterids cb587 https://padlet.com/cb587/lasv009eifrq/wish/264275788 2018-05-29 14:47:04 UTC https://padlet.com/cb587/lasv009eifrq/wish/264275788 Chimerarachne yingi cb587 https://padlet.com/cb587/lasv009eifrq/wish/264276382 2018-05-29 14:48:54 UTC https://padlet.com/cb587/lasv009eifrq/wish/264276382 Black widow Karyotype cb587 https://padlet.com/cb587/lasv009eifrq/wish/264291305 2018-05-29 15:35:12 UTC https://padlet.com/cb587/lasv009eifrq/wish/264291305