• Question: what is the difference between our blood cells and worm blood cells because suspiciously if you chop part of their body off they grow back but with us if someone chops part of our body of we will probably die and never grow that part back. :)

    Asked by danielbossfalako to Kat, Andrew, Katie, Sadaf on 23 Jun 2013.
    • Photo: Andrew Swale

      Andrew Swale answered on 23 Jun 2013:

      Regeneration is actually more concerned with ‘stem cells’ .

      Stem cells are what all are cells begin as and as we develop they differentiate into various cell types in our body. lizards and some other creatures upon losing limbs etc are able to turn some of their cells back into stem cell and cause them to develop into the cells needed to grow back their lost limb

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