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      <title>timeline mini thresholds  by Zi Ni</title>
      <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq</link>
      <description>the mini thresholds of life</description>
      <language>en-us</language>
      <pubDate>2020-11-05 18:06:03 UTC</pubDate>
      <lastBuildDate>2026-03-01 22:33:24 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>photosynthesis 3.5 billion years ago</title>
         <author>zini722</author>
         <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895236876</link>
         <description><![CDATA[<div>some cells traveled to the sun and evolved to use the energy the sun gave them this let life spread. this transformed out carbon dioxide rih atmosphere into an oxygen rich atmosphere.</div>]]></description>
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         <pubDate>2020-11-05 18:18:12 UTC</pubDate>
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         <title>Eukaryotes 2.5 billion years ago</title>
         <author>zini722</author>
         <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895261370</link>
         <description><![CDATA[<div>these more complex cells keep DNA locked up in an nucleus which helps preserve vital information. they contain tiny organs called organelles. They preform actions such as photosynthesis and they thrived on earths oxygen rich atmosphere . </div>]]></description>
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         <pubDate>2020-11-05 18:23:13 UTC</pubDate>
         <guid>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895261370</guid>
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         <title>Multicellular Organisms 1 billion years ago</title>
         <author>zini722</author>
         <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895286599</link>
         <description><![CDATA[<div>different Eukaryote cells came together to form even more complex organisms they contain billions of cells but have the same DNA. now with specialized cells they respond to change in the environment and further developing a key survival trait called homeostasis</div>]]></description>
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         <pubDate>2020-11-05 18:28:47 UTC</pubDate>
         <guid>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895286599</guid>
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         <title>Brains 500 million years ago</title>
         <author>zini722</author>
         <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895307692</link>
         <description><![CDATA[<div>multicellular organisms needed a way to coordinate all the activities<br>and the nerve cells began to cluster at the head and down the spinal cord forming the first brain, now they had a brain they can coordinate their activities   </div>]]></description>
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         <pubDate>2020-11-05 18:33:26 UTC</pubDate>
         <guid>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895307692</guid>
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         <title>Land 475 million years ago</title>
         <author>zini722</author>
         <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895329175</link>
         <description><![CDATA[<div>beginning with plants and fungi they started to move onto land because there was a rich opportunity for organisms to survive, they had to develop special skin to prevent them from drying out, a way to breath out of water and to reproduce. </div>]]></description>
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         <pubDate>2020-11-05 18:37:55 UTC</pubDate>
         <guid>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895329175</guid>
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         <title>Mammals 250 million years ago </title>
         <author>zini722</author>
         <link>https://padlet.com/zini722/xgpm78hg7a6rk5hq/wish/895347592</link>
         <description><![CDATA[<div>the first animal to live on land is probably equivalent to a lungfish but other animals such as amphibians soon evolved but still had to return to the water to lay egg but soon reptiles such as crocodiles lizards and dinosaurs evolved to have leathery eggs and they didn't have to lay their eggs in the water then 250 million years ago mammals evolved from a branch of reptiles resembling birds, mammals are warm blooded have fur and dont lay eggs</div>]]></description>
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         <pubDate>2020-11-05 18:41:44 UTC</pubDate>
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