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(a) Give the evidence that the birds have evolved from reptiles. (b) Insects, octopus, planaria and vertebrates possess eyes. Can we group these animals

together on the basis of eyes that they possess? Justify your answer giving reason.


(a)fossils provide an explanation for evolution.some dinosaurs had feathers tht provided dem insulation in cold weather,bt they cud not use dem for flyin purpose.birds seem 2 hv later used feathers 2 fly.dis means tht birds r very closely relatd 2 reptiles which suggests tht birds hv evolved frm reptiles.
(b)some animals hv commn features cuz all organisms hv into being b evolution frm a commn ancestor. similarities and disimmilarities r determind on d presence or absence of a characteristic in an organism,.
Based on dis they r classified into grps.....................
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