Question

What are the characteristics features, based on which, animals can be divided into vertebrates and invertebrates ?​

Answer 1

Answer:

Vertebrates have a skeletal structure with a spinal column or backbone. Invertebrates have no backbone, while vertebrates have a well-developed internal skeleton of cartilage and bone and a highly developed brain that is enclosed by a skull.

Explanation:

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Answer 2

Answer:

your answers refer to attachment

Explanation:

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