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ChhdDvaBqpe

Posted Thursday, November 26th, 2015 at 3:16 am by in .Edit this post More in

I saw your advert in the paper 5 paragraph literary analysis essay According to the Telegraph, organisms then had to respond to the seas filling with toxic calcium. In order to do this, animals had to find a means of expelling the calcium to guarantee their survival. Many scientists have posited that these diversifying organisms harnessed the calcium to form crystals, which eventually became shells and skeletal tissue. Predators then developed claws and jaws, whilst their prey replied through evolution of hardened structures, with which they could use to defend themselves.

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