Question

Planaria,Insects, octopus and vertebrates possess eyes. State , giving reason why we cannot group these animals together on the basis of the eyes they possess

Answer 1

All organisms have many common features. It is because of all organisms have come in to being evolution from a common ancestor. Similarities and dissimilarities on the basis of presence or absence of a characteristic in an organism. Based on this they are classified in to different groups.
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