Which milestone in the evolution of animals classifies them as either vertebrates or invertebrates?

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21-04-2017
Biology

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Which milestone in the evolution of animals classifies them as either vertebrates or invertebrates?

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kode2 kode2 · Answer 1 · 2017-04-21T06:02:04+02:00

kode2 kode2

21-04-2017

I could be wrong here, but I believe that the classification of vertebrates or invertebrates is based of if the organism in question has a central spinal column or just a spine at all.

Vertebrae - animal with spine

Invertebrate - animal w/o spine

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iNihga iNihga · Answer 2 · 2022-05-24T18:18:05+02:00

iNihga iNihga

24-05-2022

Answer:

development of a backbone

Explanation:

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