What's speciation and how are vertebrates and invertebrates classified?

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Txhmid
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Report Thread starter 5 years ago
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My teacher told us the topics that are in the upcoming test, i'm confused on the two in the title.

Thanks!
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chantalc
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vertebrates have a backbone and invertebrates don't? speciation is the formation of new species due to evolution.
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Txhmid
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thanks, my teacher said that they have to be in a lot of depth .... it is confusing for me
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